PROCESS FOR PREPARING BIS (METHOXYCARBONYL-METHYL) TOLYL PHOSPHINOXIDE

摘要

The invention relates to a process for preparing bis (methoxycarbonyl-methyl) tolyl phosphinoxide from a mixture of tolyl diclorophosphine and methyl bromoacetate, subjected to the Reformatski reaction in the presence of zinc powder, in a mole ratio tolyl diclorophosphine/ methyl bromoacetate / Zn of 1/2/2 under anhydrous conditions, while vigorously stirring, by refluxing in benzene, afterwards oxidating in situ with oxygenated water at a temperature of 20 degree C.