作者:Yanchang Shen、Yuejun Xiang
DOI:10.1080/00397919108021289
日期:1991.6
The reaction of pentafluorophenylmethylene-triphenylarsorane or p-chloro-tetrafluorophenylmethyl-enetriphenylarsorane, generated in situ from methylene-triphenylarsorane and hexafluorobenzene or chloropenta-fluorobenzene, with bromoacetates giving excellent yields of 3-pentafluorophenyl or 3-p-chloro-tetrafluorophenyl alpha,beta-unsaturated esters with high steroselectivity is described.