HOMOLYTIC SUBSTITUTION-REACTION AT A SILICON ATOM

被引：46

作者：

KULICKE, KJ ^{[1
]}

CHATGILIALOGLU, C ^{[1
]}

KOPPING, B ^{[1
]}

GIESE, B ^{[1
]}

机构：

[1] UNIV BASEL,INST ORGAN CHEM,ST JOHANNS RING 19,CH-4056 BASEL,SWITZERLAND

来源：

HELVETICA CHIMICA ACTA | 1992年 / 75卷 / 03期

关键词：

D O I：

10.1002/hlca.19920750327

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Tris(trimethylsilyl)silane (2) is an efficient hydrosilylating agent of 1,6-dienes 1 operating via a free-radical chain mechanism. The intermediate alkyl radical 3 attacks the second olefinic bond of the diene 1 and forms cyclopentylalkyl radical 4. Using a low concentration of the hydrogen donor 2, a radical substitution reaction at the Si-center of cis-4 occurs and yields the bicyclic silane 6. The rate of this homolytic substitution at the Si-atom is 2.4 . 10(5) s-1 (80-degrees).

引用

页码：935 / 939

页数：5