Synthesis of 4-Aryl-2(5H)-furanones by Gold(I)-Catalyzed Intramolecular Annulation
作者:Haifeng Sun、He Huang、Dengyou Zhang、Enguang Feng、Wangke Qian、Lei Zhang、Kaixian Chen、Hong Liu
DOI:10.1002/adsc.201100069
日期:2011.6
A novel method that involves intramolecularannulation and a new type of rearrangement has been developed for the synthesis of 4‐aryl‐2(5H)‐furanones. A variety of prop‐2‐ynyl 3‐oxo‐3‐phenylpropanoates undergo annulation cyclization in the presence of chloro(triphenylphosphine)gold and trifluoromethanesulfonic to afford the desired products in moderate to high yields.