Wei Dong
2003
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Journal
Chemical Reaction Engineering and Technology
Abstract
The synthesis of methanesulfonic anhydride from the corresponding acid with thionyl chloride and the purificaton of the product from recrystallization solvents were studied. The results showed that the yield of product can be up to 90% under optimum conditions: the reaction temperature is 80℃, the molar ratio of methanesulfonic acid to thionyl chloride is 1/2.5, the reaction time is 4 hours, the time of evaporation of excessive thionyl chloride is 1 hour, and the solvent is benzeneisopropyl ether (vol. ration is 1∶0.7~1).