Regioselective syntheses of polyalkyleted cyclopentanones
作者:Serge Halazy、Alain Krief
DOI:10.1039/c39820001200
日期:——
The title compounds have been regioselectively prepared from carbonyl compounds via two ring expansions.
标题化合物已经通过两个环的扩展从羰基化合物区域选择性地制备。
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.