Cyclic dithiocarbonates were prepared in good yield and excellent selectivity through an environmental acceptable methodology involving the reaction of substituted epoxides with carbon disulfide under hydrotalcite catalysis. The catalyst can be recovered by filtration and reused several times.
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).
Organocatalytic one-pot synthesis of functionalized 1,3-oxathiolanes and 1,3-thiazolidines
作者:Majid Ghazanfarpour-Darjani、Alieh Khodakarami
DOI:10.1007/s00706-015-1543-3
日期:2016.4
AbstractAn efficient organocatalytic approach for the synthesis of 1,3-oxathiolanes and 1,3-thiazolidines is reported. In this methodology, conjugated base of nitromethane was employed as a potential organocatalyst to promote cyclization reaction between strained heterocyclic compounds and heterocumulenes at ambient conditions. Graphical abstract
An efficient one-pot synthesis of functionalized 1,3--oxathiolane-2-thiones is described via reaction of carbon disulfide with oxiranes in the presence of sodium hydride (10 mol%) and methanol.