메뉴 건너뛰기




Volumn 121, Issue 5, 1999, Pages 1104-1105

Catalytic enantioselective annulations via 1,4-addition - Aldol cyclization of functionalized organozinc reagents [9]

Author keywords

[No Author keywords available]

Indexed keywords

2 CYCLOHEXENONE; BICYCLO COMPOUND; ORGANOMETALLIC COMPOUND; REAGENT; ZINC DERIVATIVE;

EID: 0033540709     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja983693g     Document Type: Letter
Times cited : (152)

References (44)
  • 1
    • 0041906332 scopus 로고
    • For reviews see: (a) Jung, M. E. Tetrahedron 1976, 32, 1-31. (b) Gawley, R. E. Synthesis 1976, 777-794.
    • (1976) Tetrahedron , vol.32 , pp. 1-31
    • Jung, M.E.1
  • 2
    • 0002062240 scopus 로고
    • For reviews see: (a) Jung, M. E. Tetrahedron 1976, 32, 1-31. (b) Gawley, R. E. Synthesis 1976, 777-794.
    • (1976) Synthesis , pp. 777-794
    • Gawley, R.E.1
  • 4
    • 0002063717 scopus 로고
    • Buchsacher, P.; Fürst, A. Org. Synth. 1984, 63, 37-43. For the [5,6]- bicyclo enedione 97% ee is obtained: Cohen, N. Acc. Chem. Res. 1976, 9, 412-417. Hajos, Z. G.; Parrish, D. R. Org. Synth. 1984, 63, 26-36.
    • (1984) Org. Synth. , vol.63 , pp. 37-43
    • Buchsacher, P.1    Fürst, A.2
  • 5
    • 0001370275 scopus 로고
    • Buchsacher, P.; Fürst, A. Org. Synth. 1984, 63, 37-43. For the [5,6]-bicyclo enedione 97% ee is obtained: Cohen, N. Acc. Chem. Res. 1976, 9, 412-417. Hajos, Z. G.; Parrish, D. R. Org. Synth. 1984, 63, 26-36.
    • (1976) Acc. Chem. Res. , vol.9 , pp. 412-417
    • Cohen, N.1
  • 6
    • 0002262097 scopus 로고
    • Buchsacher, P.; Fürst, A. Org. Synth. 1984, 63, 37-43. For the [5,6]- bicyclo enedione 97% ee is obtained: Cohen, N. Acc. Chem. Res. 1976, 9, 412-417. Hajos, Z. G.; Parrish, D. R. Org. Synth. 1984, 63, 26-36.
    • (1984) Org. Synth. , vol.63 , pp. 26-36
    • Hajos, Z.G.1    Parrish, D.R.2
  • 7
    • 0003942864 scopus 로고
    • Wiley: New York, Chapter 12
    • For reviews of other (asymmetric) annulation methodology, see: Eliel, E. L.; Wilen, S. H. Stereochemistry of Organic Compounds; Wiley: New York, 1994; Chapter 12. Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994. Annulation via the addition of allylsilanes: Schinzer, D. Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; p 2087. Catalytic annulation via [3+2] cycloaddition: Trost, B. M. Angew. Chem., Int. Ed. Engl. 1986, 25, 1-20. Binger, F.; Fox, D.; Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; Vol. E21, p 3055. Cyclopentannulation: Trost, B. M.; Chan, D. M. T. J. Am. Chem. Soc. 1983, 105, 2326- 2335. Huart, C.; Ghosez, L. Angew. Chem., Int. Ed. Engl. 1997, 36, 634- 636. Cycloisomerizations: Trost, B. M. Acc. Chem. Res. 1990, 23, 34-42. The enantioselective Diels-Alder reaction to (chiral) cycloalkenones to provide chiral decalines was extensively studied by Taticchi et al.: Minuti, L.; Radics, L.; Taticchi, A.; Venturini, L.; Wenkert, E. J. Org. Chem. 1990, 55, 4261- 4265 and references cited therein. Until now no catalytic enantioselective version of this reaction was known. (Catalytic) asymmetric conjugate addition of organometallic reagents: Feringa, B. L.; De Vries, A. H. M. Adv. Catal. Processes 1995, 1, 151. Bosshamer, S.; Gais, H.-J. Synthesis 1998, 919-927.
    • (1994) Stereochemistry of Organic Compounds
    • Eliel, E.L.1    Wilen, S.H.2
  • 8
    • 0003400107 scopus 로고
    • Wiley: New York
    • For reviews of other (asymmetric) annulation methodology, see: Eliel, E. L.; Wilen, S. H. Stereochemistry of Organic Compounds; Wiley: New York, 1994; Chapter 12. Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994. Annulation via the addition of allylsilanes: Schinzer, D. Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; p 2087. Catalytic annulation via [3+2] cycloaddition: Trost, B. M. Angew. Chem., Int. Ed. Engl. 1986, 25, 1-20. Binger, F.; Fox, D.; Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; Vol. E21, p 3055. Cyclopentannulation: Trost, B. M.; Chan, D. M. T. J. Am. Chem. Soc. 1983, 105, 2326- 2335. Huart, C.; Ghosez, L. Angew. Chem., Int. Ed. Engl. 1997, 36, 634- 636. Cycloisomerizations: Trost, B. M. Acc. Chem. Res. 1990, 23, 34-42. The enantioselective Diels-Alder reaction to (chiral) cycloalkenones to provide chiral decalines was extensively studied by Taticchi et al.: Minuti, L.; Radics, L.; Taticchi, A.; Venturini, L.; Wenkert, E. J. Org. Chem. 1990, 55, 4261- 4265 and references cited therein. Until now no catalytic enantioselective version of this reaction was known. (Catalytic) asymmetric conjugate addition of organometallic reagents: Feringa, B. L.; De Vries, A. H. M. Adv. Catal. Processes 1995, 1, 151. Bosshamer, S.; Gais, H.-J. Synthesis 1998, 919-927.
    • (1994) Asymmetric Catalysis in Organic Synthesis
    • Noyori, R.1
  • 9
    • 0344918613 scopus 로고    scopus 로고
    • Houben Weyl: Stuttgart
    • For reviews of other (asymmetric) annulation methodology, see: Eliel, E. L.; Wilen, S. H. Stereochemistry of Organic Compounds; Wiley: New York, 1994; Chapter 12. Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994. Annulation via the addition of allylsilanes: Schinzer, D. Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; p 2087. Catalytic annulation via [3+2] cycloaddition: Trost, B. M. Angew. Chem., Int. Ed. Engl. 1986, 25, 1-20. Binger, F.; Fox, D.; Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; Vol. E21, p 3055. Cyclopentannulation: Trost, B. M.; Chan, D. M. T. J. Am. Chem. Soc. 1983, 105, 2326- 2335. Huart, C.; Ghosez, L. Angew. Chem., Int. Ed. Engl. 1997, 36, 634- 636. Cycloisomerizations: Trost, B. M. Acc. Chem. Res. 1990, 23, 34-42. The enantioselective Diels-Alder reaction to (chiral) cycloalkenones to provide chiral decalines was extensively studied by Taticchi et al.: Minuti, L.; Radics, L.; Taticchi, A.; Venturini, L.; Wenkert, E. J. Org. Chem. 1990, 55, 4261- 4265 and references cited therein. Until now no catalytic enantioselective version of this reaction was known. (Catalytic) asymmetric conjugate addition of organometallic reagents: Feringa, B. L.; De Vries, A. H. M. Adv. Catal. Processes 1995, 1, 151. Bosshamer, S.; Gais, H.-J. Synthesis 1998, 919-927.
    • (1996) Methods of Organic Chemistry , pp. 2087
    • Schinzer, D.1
  • 10
    • 84985502069 scopus 로고
    • For reviews of other (asymmetric) annulation methodology, see: Eliel, E. L.; Wilen, S. H. Stereochemistry of Organic Compounds; Wiley: New York, 1994; Chapter 12. Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994. Annulation via the addition of allylsilanes: Schinzer, D. Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; p 2087. Catalytic annulation via [3+2] cycloaddition: Trost, B. M. Angew. Chem., Int. Ed. Engl. 1986, 25, 1-20. Binger, F.; Fox, D.; Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; Vol. E21, p 3055. Cyclopentannulation: Trost, B. M.; Chan, D. M. T. J. Am. Chem. Soc. 1983, 105, 2326- 2335. Huart, C.; Ghosez, L. Angew. Chem., Int. Ed. Engl. 1997, 36, 634- 636. Cycloisomerizations: Trost, B. M. Acc. Chem. Res. 1990, 23, 34-42. The enantioselective Diels-Alder reaction to (chiral) cycloalkenones to provide chiral decalines was extensively studied by Taticchi et al.: Minuti, L.; Radics, L.; Taticchi, A.; Venturini, L.; Wenkert, E. J. Org. Chem. 1990, 55, 4261- 4265 and references cited therein. Until now no catalytic enantioselective version of this reaction was known. (Catalytic) asymmetric conjugate addition of organometallic reagents: Feringa, B. L.; De Vries, A. H. M. Adv. Catal. Processes 1995, 1, 151. Bosshamer, S.; Gais, H.-J. Synthesis 1998, 919-927.
    • (1986) Angew. Chem., Int. Ed. Engl. , vol.25 , pp. 1-20
    • Trost, B.M.1
  • 11
    • 0345349868 scopus 로고    scopus 로고
    • Houben Weyl: Stuttgart
    • For reviews of other (asymmetric) annulation methodology, see: Eliel, E. L.; Wilen, S. H. Stereochemistry of Organic Compounds; Wiley: New York, 1994; Chapter 12. Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994. Annulation via the addition of allylsilanes: Schinzer, D. Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; p 2087. Catalytic annulation via [3+2] cycloaddition: Trost, B. M. Angew. Chem., Int. Ed. Engl. 1986, 25, 1-20. Binger, F.; Fox, D.; Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; Vol. E21, p 3055. Cyclopentannulation: Trost, B. M.; Chan, D. M. T. J. Am. Chem. Soc. 1983, 105, 2326- 2335. Huart, C.; Ghosez, L. Angew. Chem., Int. Ed. Engl. 1997, 36, 634- 636. Cycloisomerizations: Trost, B. M. Acc. Chem. Res. 1990, 23, 34-42. The enantioselective Diels-Alder reaction to (chiral) cycloalkenones to provide chiral decalines was extensively studied by Taticchi et al.: Minuti, L.; Radics, L.; Taticchi, A.; Venturini, L.; Wenkert, E. J. Org. Chem. 1990, 55, 4261- 4265 and references cited therein. Until now no catalytic enantioselective version of this reaction was known. (Catalytic) asymmetric conjugate addition of organometallic reagents: Feringa, B. L.; De Vries, A. H. M. Adv. Catal. Processes 1995, 1, 151. Bosshamer, S.; Gais, H.-J. Synthesis 1998, 919-927.
    • (1996) Methods of Organic Chemistry , vol.E21 , pp. 3055
    • Binger, F.1    Fox, D.2
  • 12
    • 0001602290 scopus 로고
    • For reviews of other (asymmetric) annulation methodology, see: Eliel, E. L.; Wilen, S. H. Stereochemistry of Organic Compounds; Wiley: New York, 1994; Chapter 12. Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994. Annulation via the addition of allylsilanes: Schinzer, D. Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; p 2087. Catalytic annulation via [3+2] cycloaddition: Trost, B. M. Angew. Chem., Int. Ed. Engl. 1986, 25, 1-20. Binger, F.; Fox, D.; Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; Vol. E21, p 3055. Cyclopentannulation: Trost, B. M.; Chan, D. M. T. J. Am. Chem. Soc. 1983, 105, 2326-2335. Huart, C.; Ghosez, L. Angew. Chem., Int. Ed. Engl. 1997, 36, 634- 636. Cycloisomerizations: Trost, B. M. Acc. Chem. Res. 1990, 23, 34-42. The enantioselective Diels-Alder reaction to (chiral) cycloalkenones to provide chiral decalines was extensively studied by Taticchi et al.: Minuti, L.; Radics, L.; Taticchi, A.; Venturini, L.; Wenkert, E. J. Org. Chem. 1990, 55, 4261- 4265 and references cited therein. Until now no catalytic enantioselective version of this reaction was known. (Catalytic) asymmetric conjugate addition of organometallic reagents: Feringa, B. L.; De Vries, A. H. M. Adv. Catal. Processes 1995, 1, 151. Bosshamer, S.; Gais, H.-J. Synthesis 1998, 919-927.
    • (1983) J. Am. Chem. Soc. , vol.105 , pp. 2326-2335
    • Trost, B.M.1    Chan, D.M.T.2
  • 13
    • 0030948204 scopus 로고    scopus 로고
    • For reviews of other (asymmetric) annulation methodology, see: Eliel, E. L.; Wilen, S. H. Stereochemistry of Organic Compounds; Wiley: New York, 1994; Chapter 12. Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994. Annulation via the addition of allylsilanes: Schinzer, D. Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; p 2087. Catalytic annulation via [3+2] cycloaddition: Trost, B. M. Angew. Chem., Int. Ed. Engl. 1986, 25, 1-20. Binger, F.; Fox, D.; Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; Vol. E21, p 3055. Cyclopentannulation: Trost, B. M.; Chan, D. M. T. J. Am. Chem. Soc. 1983, 105, 2326- 2335. Huart, C.; Ghosez, L. Angew. Chem., Int. Ed. Engl. 1997, 36, 634-636. Cycloisomerizations: Trost, B. M. Acc. Chem. Res. 1990, 23, 34-42. The enantioselective Diels-Alder reaction to (chiral) cycloalkenones to provide chiral decalines was extensively studied by Taticchi et al.: Minuti, L.; Radics, L.; Taticchi, A.; Venturini, L.; Wenkert, E. J. Org. Chem. 1990, 55, 4261- 4265 and references cited therein. Until now no catalytic enantioselective version of this reaction was known. (Catalytic) asymmetric conjugate addition of organometallic reagents: Feringa, B. L.; De Vries, A. H. M. Adv. Catal. Processes 1995, 1, 151. Bosshamer, S.; Gais, H.-J. Synthesis 1998, 919-927.
    • (1997) Angew. Chem., Int. Ed. Engl. , vol.36 , pp. 634-636
    • Huart, C.1    Ghosez, L.2
  • 14
    • 0002524474 scopus 로고
    • For reviews of other (asymmetric) annulation methodology, see: Eliel, E. L.; Wilen, S. H. Stereochemistry of Organic Compounds; Wiley: New York, 1994; Chapter 12. Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994. Annulation via the addition of allylsilanes: Schinzer, D. Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; p 2087. Catalytic annulation via [3+2] cycloaddition: Trost, B. M. Angew. Chem., Int. Ed. Engl. 1986, 25, 1-20. Binger, F.; Fox, D.; Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; Vol. E21, p 3055. Cyclopentannulation: Trost, B. M.; Chan, D. M. T. J. Am. Chem. Soc. 1983, 105, 2326- 2335. Huart, C.; Ghosez, L. Angew. Chem., Int. Ed. Engl. 1997, 36, 634- 636. Cycloisomerizations: Trost, B. M. Acc. Chem. Res. 1990, 23, 34-42. The enantioselective Diels-Alder reaction to (chiral) cycloalkenones to provide chiral decalines was extensively studied by Taticchi et al.: Minuti, L.; Radics, L.; Taticchi, A.; Venturini, L.; Wenkert, E. J. Org. Chem. 1990, 55, 4261- 4265 and references cited therein. Until now no catalytic enantioselective version of this reaction was known. (Catalytic) asymmetric conjugate addition of organometallic reagents: Feringa, B. L.; De Vries, A. H. M. Adv. Catal. Processes 1995, 1, 151. Bosshamer, S.; Gais, H.-J. Synthesis 1998, 919-927.
    • (1990) Acc. Chem. Res. , vol.23 , pp. 34-42
    • Trost, B.M.1
  • 15
    • 0000412225 scopus 로고
    • and references cited therein
    • For reviews of other (asymmetric) annulation methodology, see: Eliel, E. L.; Wilen, S. H. Stereochemistry of Organic Compounds; Wiley: New York, 1994; Chapter 12. Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994. Annulation via the addition of allylsilanes: Schinzer, D. Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; p 2087. Catalytic annulation via [3+2] cycloaddition: Trost, B. M. Angew. Chem., Int. Ed. Engl. 1986, 25, 1-20. Binger, F.; Fox, D.; Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; Vol. E21, p 3055. Cyclopentannulation: Trost, B. M.; Chan, D. M. T. J. Am. Chem. Soc. 1983, 105, 2326- 2335. Huart, C.; Ghosez, L. Angew. Chem., Int. Ed. Engl. 1997, 36, 634- 636. Cycloisomerizations: Trost, B. M. Acc. Chem. Res. 1990, 23, 34-42. The enantioselective Diels-Alder reaction to (chiral) cycloalkenones to provide chiral decalines was extensively studied by Taticchi et al.: Minuti, L.; Radics, L.; Taticchi, A.; Venturini, L.; Wenkert, E. J. Org. Chem. 1990, 55, 4261-4265 and references cited therein. Until now no catalytic enantioselective version of this reaction was known. (Catalytic) asymmetric conjugate addition of organometallic reagents: Feringa, B. L.; De Vries, A. H. M. Adv. Catal. Processes 1995, 1, 151. Bosshamer, S.; Gais, H.-J. Synthesis 1998, 919-927.
    • (1990) J. Org. Chem. , vol.55 , pp. 4261-4265
    • Minuti, L.1    Radics, L.2    Taticchi, A.3    Venturini, L.4    Wenkert, E.5
  • 16
    • 0001068768 scopus 로고
    • For reviews of other (asymmetric) annulation methodology, see: Eliel, E. L.; Wilen, S. H. Stereochemistry of Organic Compounds; Wiley: New York, 1994; Chapter 12. Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994. Annulation via the addition of allylsilanes: Schinzer, D. Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; p 2087. Catalytic annulation via [3+2] cycloaddition: Trost, B. M. Angew. Chem., Int. Ed. Engl. 1986, 25, 1-20. Binger, F.; Fox, D.; Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; Vol. E21, p 3055. Cyclopentannulation: Trost, B. M.; Chan, D. M. T. J. Am. Chem. Soc. 1983, 105, 2326- 2335. Huart, C.; Ghosez, L. Angew. Chem., Int. Ed. Engl. 1997, 36, 634- 636. Cycloisomerizations: Trost, B. M. Acc. Chem. Res. 1990, 23, 34-42. The enantioselective Diels-Alder reaction to (chiral) cycloalkenones to provide chiral decalines was extensively studied by Taticchi et al.: Minuti, L.; Radics, L.; Taticchi, A.; Venturini, L.; Wenkert, E. J. Org. Chem. 1990, 55, 4261- 4265 and references cited therein. Until now no catalytic enantioselective version of this reaction was known. (Catalytic) asymmetric conjugate addition of organometallic reagents: Feringa, B. L.; De Vries, A. H. M. Adv. Catal. Processes 1995, 1, 151. Bosshamer, S.; Gais, H.-J. Synthesis 1998, 919-927.
    • (1995) Adv. Catal. Processes , vol.1 , pp. 151
    • Feringa, B.L.1    De Vries, A.H.M.2
  • 17
    • 0031776159 scopus 로고    scopus 로고
    • For reviews of other (asymmetric) annulation methodology, see: Eliel, E. L.; Wilen, S. H. Stereochemistry of Organic Compounds; Wiley: New York, 1994; Chapter 12. Noyori, R. Asymmetric Catalysis in Organic Synthesis; Wiley: New York, 1994. Annulation via the addition of allylsilanes: Schinzer, D. Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; p 2087. Catalytic annulation via [3+2] cycloaddition: Trost, B. M. Angew. Chem., Int. Ed. Engl. 1986, 25, 1-20. Binger, F.; Fox, D.; Methods of Organic Chemistry; Houben Weyl: Stuttgart, 1996; Vol. E21, p 3055. Cyclopentannulation: Trost, B. M.; Chan, D. M. T. J. Am. Chem. Soc. 1983, 105, 2326- 2335. Huart, C.; Ghosez, L. Angew. Chem., Int. Ed. Engl. 1997, 36, 634- 636. Cycloisomerizations: Trost, B. M. Acc. Chem. Res. 1990, 23, 34-42. The enantioselective Diels-Alder reaction to (chiral) cycloalkenones to provide chiral decalines was extensively studied by Taticchi et al.: Minuti, L.; Radics, L.; Taticchi, A.; Venturini, L.; Wenkert, E. J. Org. Chem. 1990, 55, 4261- 4265 and references cited therein. Until now no catalytic enantioselective version of this reaction was known. (Catalytic) asymmetric conjugate addition of organometallic reagents: Feringa, B. L.; De Vries, A. H. M. Adv. Catal. Processes 1995, 1, 151. Bosshamer, S.; Gais, H.-J. Synthesis 1998, 919-927.
    • (1998) Synthesis , pp. 919-927
    • Bosshamer, S.1    Gais, H.-J.2
  • 23
    • 0002469314 scopus 로고
    • Langer, F.; Devasagayarai, A.; Chavant, P.-Y.; Knochel, P. Synlett 1994, 410-412. Michael additions of functionalized organozinc reagents: Lipschutz, B. H.; Wood, M. R.; Tirado, R. J. J. Am. Chem. Soc. 1995, 117, 6126-6127.
    • (1994) Synlett , pp. 410-412
    • Langer, F.1    Devasagayarai, A.2    Chavant, P.-Y.3    Knochel, P.4
  • 24
    • 0000591250 scopus 로고
    • Langer, F.; Devasagayarai, A.; Chavant, P.-Y.; Knochel, P. Synlett 1994, 410-412. Michael additions of functionalized organozinc reagents: Lipschutz, B. H.; Wood, M. R.; Tirado, R. J. J. Am. Chem. Soc. 1995, 117, 6126-6127.
    • (1995) J. Am. Chem. Soc. , vol.117 , pp. 6126-6127
    • Lipschutz, B.H.1    Wood, M.R.2    Tirado, R.J.3
  • 31
    • 0344056271 scopus 로고    scopus 로고
    • note
    • 6,9 in toluene was added and the reaction mixture was stirred overnight at -30°C. Aqueous workup followed by column chromatography (silica, hexanes-ether: 3-1) yielded pure 4a as a colorless oil (462 mg, 1.9 mmol, 91%). Cyclization to 5a was performed according to a literature procedure: see ref 10b. Further details: see Supporting Information.
  • 32
    • 0345349863 scopus 로고    scopus 로고
    • note
    • For 3-ethylcycloheptanone the ee was incorrectly reported to be 53% (see ref 6b).
  • 33
    • 0014117017 scopus 로고
    • The bicyclo[4.3.0]nonenone skeleton can be found in many natural products: Porter, L. A. Chem. Rev. 1967, 67, 441-464.
    • (1967) Chem. Rev. , vol.67 , pp. 441-464
    • Porter, L.A.1
  • 35
    • 0032540965 scopus 로고    scopus 로고
    • unpublished results
    • Keller, E.; Maurer, J.; Naasz, R.; Schrader, T.; Meetsma, A.; Feringa, B. L. Tetrahedron: Asymmetry 1998, 9, 2409-2413. Arnold, L. A.; Feringa, B. L. unpublished results.
    • Arnold, L.A.1    Feringa, B.L.2
  • 36
    • 0000813657 scopus 로고    scopus 로고
    • Pfaltz et al. recently reported up to 72% ee in the 1,4-addition to cyclopentenone: Knöbel, A. K. H.; Escher, I. H.; Pfaltz, A. Synlett 1997, 1429-1431.
    • (1997) Synlett , pp. 1429-1431
    • Knöbel, A.K.H.1    Escher, I.H.2    Pfaltz, A.3
  • 41
    • 0345349861 scopus 로고
    • Procedures for related ring closures with KOH in water or ethanol at reflux yielded a mixture of three products: (a) Welch, S. C.; Asserq, J.-M.; Loh, J.-P. Tetrahedron Lett. 1986, 27, 1115-1118. (b) Islam, A. M.; Raphael, R. A. J. Chem. Soc. 1952, 4086-4087.
    • (1986) Tetrahedron Lett. , vol.27 , pp. 1115-1118
    • Welch, S.C.1    Asserq, J.-M.2    Loh, J.-P.3
  • 42
    • 0345349861 scopus 로고
    • Procedures for related ring closures with KOH in water or ethanol at reflux yielded a mixture of three products: (a) Welch, S. C.; Asserq, J.-M.; Loh, J.-P. Tetrahedron Lett. 1986, 27, 1115-1118. (b) Islam, A. M.; Raphael, R. A. J. Chem. Soc. 1952, 4086-4087.
    • (1952) J. Chem. Soc. , pp. 4086-4087
    • Islam, A.M.1    Raphael, R.A.2
  • 43
    • 0344056268 scopus 로고    scopus 로고
    • note
    • A trans:cis ratio of 35:1 was found after the Wacker oxidation which is due to slow conversion of the cis-isomer of 6a.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.