Interconversion between syn and anti conformations of 1,3-Bis(O-cyanomethyl)-p-tert-butylthiacalix[4]arene

被引：9

作者：

Bhalla, V

Kumar, M

Kabuto, C

Hattori, T

Miyano, S

机构：

[1] Tohoku Univ, Grad Sch Environm Studies, Dept Environm Studies, Aoba Ku, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ, Grad Sch Sci, Instrumental Anal Ctr Chem, Aoba Ku, Sendai, Miyagi 9808579, Japan

来源：

CHEMISTRY LETTERS | 2004年 / 33卷 / 02期

关键词：

D O I：

10.1246/cl.2004.184

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

1,3-Bis(O-cyanomethyl)-p-tert-butylthiacalix[4]arene (5) has been found to interconvert between syn and anti conformations in solution. The equilibrium shifts toward the anti form with increasing solvent polarity. In the solid state, it adopts a pinched cone conformation with the syn arrangement of the cyanomethyl groups. Reduction of the equilibrium mixture of 5 with LiAlH4 gives only anti stereoisomer of 1,3-bis(O-amino-ethyl)-p-tert-butylthiacalix[4]arene.

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页码：184 / 185

页数：2

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