Selectively synthesis of cyclic di- and trithiocarbonates by N -heterocyclic carbene/LiCl(Br) catalyzed addition of carbon disulfide to epoxides
作者:Congmin Mei、Xu Li、Lihuai Liu、Changsheng Cao、Guangsheng Pang、Yanhui Shi
DOI:10.1016/j.tet.2017.08.009
日期:2017.9
Carbon disulfide is an abundant, inexpensive and readily available material. One of the main challenges in the reaction of epoxides with CS2 is to control the chemoselectivity as a variety of compounds would be formed in the reaction. A simple and convenient method toward selectively synthesis of oxathiolane and trithiocarbonate from epoxides with CS2 catalyzed by NHC/LiCl(Br) under the neat conditions