Tetrahedron

Novel conformational isomerism of water-soluble calix [4] arenes

T Nagasaki, K Sisido, T Arimura, S Shinkai

文献索引：Nagasaki, Takeshi; Sisido, Koichi; Arimura, Takashi; Shinkai, Seiji Tetrahedron, 1992 , vol. 48, # 5 p. 797 - 804

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被引用次数: 42

摘要

The conformer distribution of 5, 11, 17, 23-tetrasulfonato-25, 26, 27, 28-tetramethoxycalix [4] arene (1) and 5, 11, 17, 23-tetrakis (trimethylammoniomethyl)-25, 26, 27, 28- tetramethoxycalix [4] arene (2) was estimated in an aqueous system. Surprisingly, these calix [4] arenes adopt a 1, 3-alternate conformation which has never been found as a major species in organic solvents but has been predicted to be most stable on the basis of ...