Thermally-Induced 1, 2-Shifts To Convert Olefins to Carbenes: Does Silicon Do It? If So, Why Not Carbon?

TJ Barton, J Lin, S Ijadi-Maghsoodi…

Index: Barton, Thomas J.; Lin, Jibing; Ijadi-Maghsoodi, Sina; Power, Martin D.; Zhang, Xianping; Ma, Zhongxin; Shimizu, Hideaki; Gordon, Mark S. Journal of the American Chemical Society, 1995 , vol. 117, # 47 p. 11695 - 11703

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Citation Number: 35

Abstract

Abstract: Thermal isomerization of olefins to carbenes via a 1,241~ 1 shift was examined by both experiment and theory. No evidence of this rearrangement was found for acyclic vinylsilanes, nor could electronic assistance by silicon be identified in cis, trans isomerizations. Serendipitous synthesis of a 2, 4-dimethylene-l, 3-disilacyclobutane allowed a kinetic examination of its gas-phase, thermal ring expansion to a 2-methylene-1, 3- ...