Olefins including alkylidenecyclopropanes are readily prepared from the corresponding selenides by reaction of base on the corresponding selenonium salt. The reaction also applies to cyclopropylsulfides.
Regio and stereoselective synthesis of 1-methylseleno-1-vinyl and 1-phenylseleno-1-vinyl cyclopropanes
作者:S. Halazy、A. Krief
DOI:10.1016/s0040-4039(01)90453-8
日期:1981.1
The Z and E teomers of the title compounds are regioselectivity and stereoselectively prepared respectively by reaction of phosphorus ylides with α-selenocyclopropyl aldehydes and by addition of α-lithio seleno-cyclopropanes on α-seleno aldehydes.