ANALYSIS OF THE CONFORMATIONAL BEHAVIOR OF PERFUNCTIONALIZED BETA-CYCLODEXTRINS .1. EVIDENCE FOR INSERTION OF ONE OF THE RIM SUBSTITUENTS INTO THE CYCLODEXTRIN CAVITY IN ORGANIC-SOLVENTS

被引:52
作者
JULLIEN, L
CANCEILL, J
LACOMBE, L
LEHN, JM
机构
[1] Laboratoire de Chimie des Interactions Moléculaires, Collège de France, F-75005 Paris
来源
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1994年 / 05期
关键词
D O I
10.1039/p29940000989
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Several functionalized beta-cyclodextrins have been shown to exhibit conformational isomerism. The analysis of the conformational behaviour of several derivatives strongly suggests that a slow exchange occurs between C-7 and C-1 conformers, the C-1 probably involving insertion of one of the primary rim substituents in the cyclodextrin cavity. The significance of the structural features of cyclodextrin substituents for the occurrence of conformational isomerism is examined. The relevance of the use of cyclodextrins for the design of molecular devices is discussed.
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页码:989 / 1002
页数:14
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