POLYLITHIUMORGANIC COMPOUNDS .16. 1,4-DISILA[6]RADIALENES - ACTIVATION PARAMETERS OF THE CHAIR-TWIST INVERSION AND ANALYTICAL SEPARATION OF THE ENANTIOMERS OF THE TWIST CONFORMERS

被引：6

作者：

MAERCKER, A ^{[1
]}

BRIEDEN, W ^{[1
]}

KASTNER, F ^{[1
]}

MANNSCHRECK, A ^{[1
]}

机构：

[1] UNIV REGENSBURG,INST ORGAN CHEM,W-8400 REGENSBURG,GERMANY

来源：

CHEMISCHE BERICHTE | 1991年 / 124卷 / 09期

关键词：

1,4-DISILA[6]RADIALENES; 6]RADIALENES; CHAIR-TWIST INVERSION; KINETIC MEASUREMENTS OF; TWIST CONFORMERS; SEPARATION OF ENANTIOMERS OF;

D O I：

10.1002/cber.19911240925

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Kinetic measurements of the chair-twist inversion of the 1,4-disila[6]radialenes 2-4 have been performed at four different temperatures, respectively. The entropies of activation are found to be negative. While the chair conformers of the radialenes are achiral as expected, the enantiomers of the three twist conformers could be separated by HPLC on an optically active stationary phase.

引用

页码：2033 / 2036

页数：4

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