A METHOD OF PRODUCING BROMIDES OF-S-DIALKOXYTHIOPHOSPHORYL THIOGLYCOLIC ACID

摘要

A method of producing bromides of S-dialkoxythiophosphorl-thioglycolic acid of the general formula 1 shown in the accompanying draings. in which R and R1 are the same or different and denote an alkoxyl group with 1-5 carbon atoms or an aryloxyl group with 6 carbon atoms, wherein thiox aphosphoranesulphenyl bromide of the general formula 2 of the drawings, in which R and R1 have the above specified meaning, is treated in the medium of aprotic solvent such as herein described, with 1-3 moles of ketene of the formula CH2-C=0 in a temperature of form -25degrees C upto +10degrees C.