Thermal polymorphic transformation of p-tert-butylcalix[4] arene derivatives bearing amino acid substituents

被引：20

作者：

Nomura, E ^{[1
]}

Takagaki, M ^{[1
]}

Nakaoka, C ^{[1
]}

Taniguchi, H ^{[1
]}

机构：

[1] Ind Technol Ctr Wakayama Prefecture, Wakayama 6496261, Japan

来源：

JOURNAL OF ORGANIC CHEMISTRY | 2000年 / 65卷 / 19期

关键词：

D O I：

10.1021/jo000165q

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Studies were made on the polymorphism of p-tert-butylcalix[4]arene derivatives having amino acid groups on the lower rim to stabilize their hydrophilic pseudocavity by circular intramolecular hydrogen bonding. The calixarenes exhibit a polymorphic transformation upon heating in the solid state. This transformation is controlled by the thermal history of solids, accompanying the change on the conformation of the calixarene skeleton and also the change of hydrogen bonding in the hydrophilic pseudocavity.

引用

页码：5932 / 5936

页数：5

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