Concave reagents. Part 27. Steric requirements of intraannular substituents in A,D-bridged calix[6]arenes

Journal of the Chemical Society. Perkin Transactions 2

Volumn , Issue 7, 1997, Pages 1313-1317

  Lüning, Ulrich ^a   Ross, Haymo ^a   Thondorf, Iris ^b  

^a UNIVERSITY OF KIEL   (Germany)

^b MARTIN LUTHER UNIVERSITY HALLE WITTENBERG   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0347800979     PISSN: 03009580     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (41)

1. Presented at the 4th International Conference on Calixarenes in Parma, Italy, 31.8-4.9, 1997. Concave Reagents. Part 26: V. Lüning, S. Petersen, W. Schyja, W. Hacker, T. Marquardt, K. Wagner and M. Bolte, Eur. J. Org. Chem., 1998, in the press.
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7. 3) ≡ 0].
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25. The all-u conformation is also referred to as the cone conformation: (a) C. D. Gutsche, Calixarenes, The Royal Society of Chemistry, Cambridge, 1989; (b) Calixarenes, a Versatile Class of Macrocyclic Compounds, eds. J. Vicens and V. Böhmer, Kluwer Academic, Dordrecht, 1991; (c) V. Böhmer, Angew. Chem., 1995, 107, 785; Angew. Chem., Int. Ed. Engl., 1995, 34, 713.
26. The all-u conformation is also referred to as the cone conformation: (a) C. D. Gutsche, Calixarenes, The Royal Society of Chemistry, Cambridge, 1989; (b) Calixarenes, a Versatile Class of Macrocyclic Compounds, eds. J. Vicens and V. Böhmer, Kluwer Academic, Dordrecht, 1991; (c) V. Böhmer, Angew. Chem., 1995, 107, 785; Angew. Chem., Int. Ed. Engl., 1995, 34, 713.
27. The all-u conformation is also referred to as the cone conformation: (a) C. D. Gutsche, Calixarenes, The Royal Society of Chemistry, Cambridge, 1989; (b) Calixarenes, a Versatile Class of Macrocyclic Compounds, eds. J. Vicens and V. Böhmer, Kluwer Academic, Dordrecht, 1991; (c) V. Böhmer, Angew. Chem., 1995, 107, 785; Angew. Chem., Int. Ed. Engl., 1995, 34, 713.
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34. (c) J.-H. Lii and N. L. Allinger, ibid, 8576.
35. 9b have obtained the pinched cone conformation as most stable for 5c.
36. 16 as a calculated intermediate of the ring inversion process of the winged cone structure.
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