Highly Stereoselective Synthesis of Trisubstituted Vinylcyclopropane Derivatives via Arsonium Ylides
作者:Hong Jiang、Xianming Deng、Xiuli Sun、Yong Tang、Li-Xin Dai
DOI:10.1021/jo051782n
日期:2005.11.1
Alkylidene or arylidene malonates reacted with arsonium allylides to give trans-disubstituted cyclopropane-1,1-dicarboxylates with high stereoselectivity in high yields. The mechanism of the cyclopropanation reactions has also been investigated.
ethynylcyclo-propane 1,1-dicarboxylic esters conveniently synthesized by the reaction of allylic diisobutyltelluronium ylides with alkylidene or arylmethy-lidene malonic esters with high yields and high stereoselectivity. The effects of the reaction media and bases used to produce the ylides on the stereoselectivity are studied.