Synthesis of multi-functional alkenes via Wittig reaction with a new-type of phosphorus ylides
作者:Yi-Ling Tsai、Siang-en Syu、Shu-Mei Yang、Utpal Das、Yu-Shiou Fan、Chia-Jui Lee、Wenwei Lin
DOI:10.1016/j.tet.2014.06.015
日期:2014.8
A Bu3P-mediated mild and efficient synthesis of multi-functional alkenes has been described starting from substituted acrylate with aldehydes. In situ generated zwitterionic intermediates underwent proton-exchange to afford ylide intermediates, which were trapped by corresponding aldehydes providing the products in up to 92% yield with complete E-stereoselectivity. Further derivatization of the products