How is S-[(6-Chloro-2-oxo-1,3-benzoxazol-3(2H)-yl)methyl] O,O-diethyl phosphorodithioate (CAS: 2310-17-0) typically synthesized?

S-[(6-Chloro-2-oxo-1,3-benzoxazol-3(2H)-yl)methyl] O,O-diethyl phosphorodithioate is typically synthesized through a multi-step process involving the reaction of chloroacetyl chloride with benzoxazole, followed by the diethyl phosphorodithioate addition. Commonly used catalysts include sulfuric acid, and the yield is generally around 70-80%. The reaction is carried out at room temperature and under an inert atmosphere.