METHOD OF PREPARING ALKYLENE TRITHIOCARBONATE BY USING IMIDAZOLIUM HALIDES

摘要

A method for preparing an alkylene trithiocarbonate is provided to reduce the generation of polymer by-product and to allow the reaction to be carried out under mild condition with a high selectivity. A method for preparing an alkylene trithiocarbonate represented by the formula 2 comprises the step of reacting an alkylene carbonate represented by the formula 1 and carbon disulfide (CS2) in the presence of an imidazolium halogen compound catalyst, wherein R1 and R2 are independently H, a C1-C4 alkyl group or a phenyl group. The amount of the imidazolium halogen compound catalyst is 0.005-0.1 mol to 1 mol of the alkylene carbonate.