The reaction of 1-silylcyclopropyl anions with dichloromethyl methyl ether: the efficient synthesis of cyclopropyl silyl ketones via cyclopropylidene derivatives
作者:Toshiaki Nishizawa、Kenta Nakae、Mitsunori Honda、Ko-Ki Kunimoto、Masahito Segi
DOI:10.1016/j.tetlet.2009.12.145
日期:2010.3
The reaction of 1-silylcyclopropyl anions with dichloromethyl methyl ether is described. The reaction with an excess amount of dichloromethyl methyl ether gives the corresponding cyclopropyl silyl ketones in low yields. On the other hand, the reaction under basic conditions proceeded smoothly to afford the corresponding cyclopropylidene derivatives, exclusively. The resulting cyclopropylidene compounds
描述了1-甲硅烷基环丙基阴离子与二氯甲基甲基醚的反应。与过量的二氯甲基甲基醚反应以低收率得到相应的环丙基甲硅烷基酮。另一方面,在碱性条件下的反应顺利进行,仅得到相应的环亚丙基衍生物。所得的环亚丙基化合物易于水解或用亲电子试剂捕获,以高收率得到环丙基甲硅烷基酮衍生物。