PROCESS FOR PREPARING O,O-DIMETHYL-PHOSPHORODITHIOATE OF ETHYL- MERCAPTOSUCCINATE (MALATHION(R))

摘要

Process for the preparation of malathion by reacting O,O-dimethyl-dithiophosphoric acid with ethyl maleate in the presence of a solvent which forms a heterogeneous azeotrope with the O,O-dimethyl-dithiophosphoric acid.