Method for producing organic phosphorous compounds containing halogene

Abstract

Method of producing compounds of the general formula XPR2(OR1)  I a where X is chlorine, bromine or iodine and R1 is an organic radical, by reacting compounds of the general formula X2PR2  II, in which X has the meaning given above and R2 is an organic radical, with compounds of the general formula R1OH  III, in which R1 has the meaning given above, to give a mixture IV, in that a) the postreaction is carried out at a temperature of from 50 to 240° C. and a pressure of from 0.001 to 0.9 bar, b) from the mixture IV the compounds I a are separated off from the compounds PR2(OR1)2  I b and, if appropriate, the compounds II and c) compounds I b and, if appropriate, unreacted compounds II are returned to the synthesis stage.

Dependencies are inferred from the claim text.