Stereospecific Synthesis of Alkylidenecyclopropanes via Sequential Cyclopropene Carbomagnesation/1,3-Carbon Shift
作者:Xiaocong Xie、Zhe Yang、Joseph M. Fox
DOI:10.1021/jo1002938
日期:2010.6.4
Alkylidenecyclopropanes can be synthesized from enantiomerically enriched cyclopropene derivatives with >99% stereotransfer and good to excellent yield. The protocol comprises the stereoselective reaction of Grignard reagents with 1-alkoxymethyl-3-hydroxymethylcyclopropenes and a stereospecific [1,3] carbon shift reaction.