Mechanism of addition of silanediyls (silylenes) to buta-1, 3-diene

MP Clarke, IMT Davidson

Index: Clarke, Michael P.; Davidson, Iain M. T. Journal of the Chemical Society, Chemical Communications, 1988 , # 3 p. 241 - 243

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Citation Number: 9

Abstract

The mechanism of addition of silanediyls (silylenes) to dienes is of topical interest. From an ingenious series of studies of the addition of dimethylsilanediyl, :SiMe2, to substituted dienes, Gaspar and his co-workers deduced from product composi- tion, including the degree of stereospecificity, that the initial step is 1,2-addition to form a vinylsilacyclopropane which then rearranges to form products, as illustrated in Scheme 1 for hexa-2,4-dienes. 1.2 They ...