CONFORMATIONAL PROPERTIES OF OCTAHYDROXY[1.(4)]METACYCLOPHANES WITH UNSUBSTITUTED METHYLENE BRIDGES

被引：22

作者：

KONISHI, H

MORIKAWA, O

机构：

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1993年 / 01期

关键词：

D O I：

10.1039/c39930000034

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Octahydroxy[1.4]metacyclophanes with long alkyl substituents on the aromatic rings have been prepared; the preferred conformation of the tetrahexyl derivative 8 in CDCl3 is a cone and its free energy of activation, DELTAG(double dagger)298, for the ring inversion has been determined to be 12.0 kcal mol-I (1 cal = 4.184 J) using dynamic H-1 NMR spectroscopy and complete line shape analysis.

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页码：34 / 35

页数：2

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