Synthesis and characterisation of two azobenzene modified 1,3-calix[4]-bis-crowns as artificial potentially allosteric systems.

被引：28

作者：

Saadioui, M ^{[1
]}

Asfari, Z ^{[1
]}

Vicens, J ^{[1
]}

机构：

[1] ECPM,LAB CHIM INTERACT MOL SPECIF,CNRS,F-67008 STRASBOURG,FRANCE

来源：

TETRAHEDRON LETTERS | 1997年 / 38卷 / 07期

关键词：

D O I：

10.1016/S0040-4039(97)00060-9

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Azo calix[4]crowns1-[2,2'] and 1-[4,4'] have been synthetized consisting in unsymmetrical 1,3-calix[4]-bis-crowns combining one polyether crown-6 and one arobenzene modified crown-6 O-attached at each side of a calix[4]arene in the 1,3-alternate conformation. Preliminary complexation of alkalis and ammonium picrates showed the cations to be located in the unmodified crown ether of the 1:1 complexes. Complexation induced changes in the trans/cis ratio of the azobenzene unit of 1-[4,4'] by an allosteric mechanism probably due to conformational changes. (C) 1997, Published by Elsevier Science Ltd.

引用

页码：1187 / 1190

页数：4

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