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
A simple and novel eco-friendly process for the synthesis of cyclic dithiocarbonates from epoxides and carbon disulfide in water
作者:Azim Ziyaei Halimehjani、Forogh Ebrahimi、Najmedin Azizi、Mohammad R. Saidi
DOI:10.1002/jhet.75
日期:2009.3
The reaction of oxiranes with carbondisulfide for preparation of cyclic dithiocarbonates was carried out in water under catalytic amount of an organic base such as dimethylaminopyridine or triethylamine. The reaction conditions are simple and give high yields of desired products. J. Heterocyclic Chem., 46, 347 (2009).