METHOD FOR PRODUCING METHYLENE DISULFONYL CHLORIDE COMPOUND

摘要

The purpose of the present invention is to provide a production method by which a methylene disulfonyl chloride compound can be obtained with a high yield using an industrially advantageous method in which the usage quantity of phosphoryl trichloride, which is a harmful substance, is reduced. Provided is a method for producing a disulfonyl chloride compound represented by formula (2) (in formula (2), R1 and R2 are the same as R1 and R2 in formula (1)) includes a step of reacting a carboxylic acid halide compound represented by formula (1): R1R2CHCOX (1) (in formula (1), R1 and R2 are each independently a hydrogen atom or a C1-C4 alkyl group in which a hydrogen atom may be substituted with a halogen atom, and X is a halogen atom), chlorosulfonic acid, and phosphoryl trichloride at a quantity of 2.0-10.0 moles relative to 1 mole of the carboxylic acid halide compound.