K. Kulicke, C. Chatgilialoglu, B. Kopping
May 6, 1992
Citations
0
Influential Citations
34
Citations
Journal
Helvetica Chimica Acta
Abstract
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 · 105 s-1 (80°).