A.C; A′.C′-doubly capped δ-cyclodextrin. Direct evidence for the capping structure

Iwao Tabushi, Lung Chi Yuan, Kazuhiro Shimokawa, Kan-ichi Yokota, Tadashi Mizutani, Yasuhisa Kuroda

doi:10.1016/s0040-4039(01)92908-9

A.C; A′.C′-doubly capped δ-cyclodextrin. Direct evidence for the capping structure

DOI Web Site Web Site 被引用文献1件

書誌事項

公開日: 1981

権利情報

https://www.elsevier.com/tdm/userlicense/1.0/

DOI

10.1016/s0040-4039(01)92908-9

公開者: Elsevier BV

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説明

Abstract Doubly capped β-cyclodextrin was firstly prepared in good yield by the treatment of β- cyclodextrin with an excess amount (2.6/1 mol/mol) of benzophenone-3,3′-disulfonyl chloride. This successful double capping demonstrates that benzophenone-3,3′-disulfonyl capping takes place on A,C rings. The present double cap is a useful key intermediate for the preparation of regiospecifically tetrasubstituted cyclodextrins.