Computational Study of Ethylene, Acetylene, and Cyclopropene Addition to Heterocycles with Two Heteroatoms in the 1,2 Position

Journal of Heterocyclic Chemistry

Volumn 35, Issue 4, 1998, Pages 811-817

  Jursic, Branko S ^a  

^a UNIVERSITY OF NEW ORLEANS   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0342360797     PISSN: 0022152X     EISSN: None     Source Type: Journal    
DOI: 10.1002/jhet.5570350406     Document Type: Article

References (68)

1. A. R. Katritzky and C. W. Rees, eds. Comprehensive Heterocyclic Chemistry, Pergamon Press, New York, 1984; A. R. Katritzky, Handbook of Heterocyclic Chemistry, Pergamon Press, New York, 1985.
2. A. R. Katritzky and C. W. Rees, eds. Comprehensive Heterocyclic Chemistry, Pergamon Press, New York, 1984; A. R. Katritzky, Handbook of Heterocyclic Chemistry, Pergamon Press, New York, 1985.
3. For explanation of the Diels-Alder reactions see: M. Kloetzel, Org. React. 4, 1 (1948); H. L. Holmes, Org. React., 4, 60 (1958); S. Seltzer, Adv. Allicyclic Chem., 2, 1 (1968); J. G. Martin and R. K. Hill, Chem. Rev., 61, 537 (1961); A. Wasserman, Diels-Alder Reactions, Elsevier, London, 1965; J. Hamer, ed, 1,4-Cycloaddition Reactions - The Diels-Alder Reaction in Heterocyclic Synthesis, Academic Press, New York, 1967; W. Carruthers, Cycloaddition Reactions in Organic Synthesis, Pergamon Press, New York, 1990.
4. For explanation of the Diels-Alder reactions see: M. Kloetzel, Org. React. 4, 1 (1948); H. L. Holmes, Org. React., 4, 60 (1958); S. Seltzer, Adv. Allicyclic Chem., 2, 1 (1968); J. G. Martin and R. K. Hill, Chem. Rev., 61, 537 (1961); A. Wasserman, Diels-Alder Reactions, Elsevier, London, 1965; J. Hamer, ed, 1,4-Cycloaddition Reactions - The Diels-Alder Reaction in Heterocyclic Synthesis, Academic Press, New York, 1967; W. Carruthers, Cycloaddition Reactions in Organic Synthesis, Pergamon Press, New York, 1990.
5. For explanation of the Diels-Alder reactions see: M. Kloetzel, Org. React. 4, 1 (1948); H. L. Holmes, Org. React., 4, 60 (1958); S. Seltzer, Adv. Allicyclic Chem., 2, 1 (1968); J. G. Martin and R. K. Hill, Chem. Rev., 61, 537 (1961); A. Wasserman, Diels-Alder Reactions, Elsevier, London, 1965; J. Hamer, ed, 1,4-Cycloaddition Reactions - The Diels-Alder Reaction in Heterocyclic Synthesis, Academic Press, New York, 1967; W. Carruthers, Cycloaddition Reactions in Organic Synthesis, Pergamon Press, New York, 1990.
6. For explanation of the Diels-Alder reactions see: M. Kloetzel, Org. React. 4, 1 (1948); H. L. Holmes, Org. React., 4, 60 (1958); S. Seltzer, Adv. Allicyclic Chem., 2, 1 (1968); J. G. Martin and R. K. Hill, Chem. Rev., 61, 537 (1961); A. Wasserman, Diels-Alder Reactions, Elsevier, London, 1965; J. Hamer, ed, 1,4-Cycloaddition Reactions - The Diels-Alder Reaction in Heterocyclic Synthesis, Academic Press, New York, 1967; W. Carruthers, Cycloaddition Reactions in Organic Synthesis, Pergamon Press, New York, 1990.
7. For explanation of the Diels-Alder reactions see: M. Kloetzel, Org. React. 4, 1 (1948); H. L. Holmes, Org. React., 4, 60 (1958); S. Seltzer, Adv. Allicyclic Chem., 2, 1 (1968); J. G. Martin and R. K. Hill, Chem. Rev., 61, 537 (1961); A. Wasserman, Diels-Alder Reactions, Elsevier, London, 1965; J. Hamer, ed, 1,4-Cycloaddition Reactions - The Diels-Alder Reaction in Heterocyclic Synthesis, Academic Press, New York, 1967; W. Carruthers, Cycloaddition Reactions in Organic Synthesis, Pergamon Press, New York, 1990.
8. For explanation of the Diels-Alder reactions see: M. Kloetzel, Org. React. 4, 1 (1948); H. L. Holmes, Org. React., 4, 60 (1958); S. Seltzer, Adv. Allicyclic Chem., 2, 1 (1968); J. G. Martin and R. K. Hill, Chem. Rev., 61, 537 (1961); A. Wasserman, Diels-Alder Reactions, Elsevier, London, 1965; J. Hamer, ed, 1,4-Cycloaddition Reactions - The Diels-Alder Reaction in Heterocyclic Synthesis, Academic Press, New York, 1967; W. Carruthers, Cycloaddition Reactions in Organic Synthesis, Pergamon Press, New York, 1990.
9. For explanation of the Diels-Alder reactions see: M. Kloetzel, Org. React. 4, 1 (1948); H. L. Holmes, Org. React., 4, 60 (1958); S. Seltzer, Adv. Allicyclic Chem., 2, 1 (1968); J. G. Martin and R. K. Hill, Chem. Rev., 61, 537 (1961); A. Wasserman, Diels-Alder Reactions, Elsevier, London, 1965; J. Hamer, ed, 1,4-Cycloaddition Reactions - The Diels-Alder Reaction in Heterocyclic Synthesis, Academic Press, New York, 1967; W. Carruthers, Cycloaddition Reactions in Organic Synthesis, Pergamon Press, New York, 1990.
10. For a critical survey on the mechanistic aspects of Diels-Alder reactions see: J. Sauer and R. Sustmann, Angew. Chem., Int. Ed. Engl., 19, 779 (1980);
11. For an excellent book on heterodienophile in Diels-Alder reactions see: D. L. Boger and S. N. Weinreb, Hetero Diels-Alder Methodology in Organic Synthesis, Academic Press, New York, 1987;
12. S. M. Weinreb and R. R. Staib, Tetrahedron, 38, 3087 (1982);
13. A. Hassner, K. S. K. Murthy, R. Muarya, W. Dehaen and O. Friedman, J. Heterocyclic Chem, 31, 687 (1994).
14. For a recent review on aromatic heterocycles as intermediates in synthesis see: M. Scipman, Contemp. Org. Synth., 2, 1 (1995)
15. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
16. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
17. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
18. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
19. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
20. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
21. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
22. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
23. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
24. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
25. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
26. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
27. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
28. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
29. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
30. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
31. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
32. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
33. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
34. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
35. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
36. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
37. For theoretical exploration of many other aromatic heterocycle as dienes for Diels-Alder reaction see: B. S. Jursic, Cycloaddition Reactions Involving Heterocyclic Compounds as Synthons in the Preparation of Valuable Organic Compounds. An Effective Combination of a Computational Study and Synthetic Applications of Heterocycle Transformations; Computational Organic Chemistry, C. Parkanyi, Ed., Elseviar, Amsterdam, 1997; B. S. Jursic and Z. Zdravkovski, J. Phys. Org. Chem., 7, 641 (1994); B. S. Jursic and Z. Zdravkovski, J. Chem. Soc. Perkin Trans. 2, 1877 (1994); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 59, 3015 (1994); B. S. Jursic and Z. Zdravkovski, Bull. Chem. Technol. Macedonia, 13, 55 (1994); B. S. Jursic, Z. Zdravkovski, S. L. Whittenburg, J. Phys. Org. Chem., 8, 753 (1995); B. S. Jursic, J. Heterocyclic Chem., 32, 1445 (1995); B. S. Jursic, J. Chem. Soc., Perkin Trans. 2, 1217 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 215 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 331, 229 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 332, 39 (1995); B. S. Jursic and D. Coupe, J. Heterocyclic Chem., 32, 483 (1995); B. S. Jursic and Z. Zdravkovski, J. Org. Chem., 60, 2865 (1995); B. S. Jursic, J. Org. Chem., 60, 4721 (1995); B. S. Jursic and Z. Zdravkovski, J. Mol. Struct. (Theochem), 337, 9 (1995); B. S. Jursic, Can. J. Chem., 74, 114 (1996); B. S. Jursic, Z. Zdravkovski and S. L. Whittenburg, J. Chem. Soc., Perkin Trans 2, 455 (1996); B. S. Jursic, J. Chem. Soc. Perkin Trans 2, 1021 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 1996, 365, 55 (1996); B. S. Jursic, J. Mol. Struct. (Theochem), 370, 85 (1996); B. S. Jursic, Tetrahedron, in press; B. S. Jursic, J. Org. Chem. in press; B. S. Jursic, Can. J. Chem. press; B. S. Jursic, J. Mol. Struct. (Theochem), in press.
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