Simplified preparations of trialkylsilyl- and bis(trialkylsilyl) dihalomethanes via the deprotonation of dihalomethanes
作者:Kunsang Yoon、David Y. Son
DOI:10.1016/s0022-328x(97)00275-1
日期:1997.1
Simple, high-yield routes to trialkylsilyl- and bis(trialkylsilyl)dihalomethanes are described. These compounds are prepared by the deprotonation of dibromomethane or dichloromethane by lithium diisopropylamide in the presence of a chlorosilane. The reactions are carried out at temperatures below -70 degrees C in THF/hexane solvent mixtures. After aqueous workup, the air- and water-stable products are isolated by either distillation or crystallization. Further reactions on these compounds are possible, as illustrated by one example. (C) 1997 Elsevier Science S.A.