Proton catalysis of nucleophilic substitution at pentacoordinate silicon

被引：10

作者：

Bassindale, AR

Baukov, YI

Taylor, PG

Negrebetsky, VV

机构：

[1] Open Univ, Dept Chem, Milton Keynes MK7 6AA, Bucks, England

[2] Dept Gen & Bioorgan Chem, Moscow 117869, Russia

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2002年 / 655卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

silicon; pentacoordinate; electrophilic; substitution;

D O I：

10.1016/S0022-328X(02)01395-5

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Addition of acid to the pentacoordinate fluorosilane 8, leads to enhanced exchange of fluorine and loss of diastereotopicity of the silicon methyl groups. A DNMR study of the H-1-NMR spectra suggests a dissociative mechanism involving protonation of the fluorine leaving group. Variable temperature studies suggest that at lower temperatures the tetracoordinate form is favoured. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 6

页数：6

共 18 条

[11]

HAEGELE G, 1995, COMPUT CHEM, V19, P277

[12] THE STEREOCHEMISTRY OF NUCLEOPHILIC-SUBSTITUTION AT TETRACOORDINATED SILICON [J].