An approach to calix[6]cryptands with bridgehead carbon atom: Stabilized in- and out- stereoisomers

被引：14

作者：

Chen, YY ^{[1
]}

Li, JS ^{[1
]}

Zhong, ZL ^{[1
]}

Lu, XR ^{[1
]}

机构：

[1] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China

来源：

TETRAHEDRON | 1998年 / 54卷 / 50期

关键词：

D O I：

10.1016/S0040-4020(98)00963-6

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A new approach to cap 1,3,5-trimethyloxy-p-tert-butyl calix[6]arene with 1,1,1-tri(tosyloxyethoxyethoxymethyl)propane to form a pair of separable stabilized in- and out- calix[6]cryptands was reported. After heating 5a or 5b at 280 degrees C, the interconversiqn between them was not detected by TLC, which provides a direct and non-spectral methodology to obtain unambiguous evidence for the ring immobilization in calix[6]arenes with stereoisomers. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

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页码：15183 / 15188

页数：6

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