FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing diacyl chlorides of 2-alkoxy-1-chloroethenylphosphonic acids of formula ROCH = CClP(O)Cl2 and can be used in chemical industry. Disclosed method involves treating adducts of alkyl vinyl esters and phosphorus pentachloride with a sulphuric acid derivative in the medium of an inert organic solvent and is characterized by that the sulphuric acid derivative used is hydroxylamine sulphate and the process is carried out at room temperature.
EFFECT: disclosed is a novel efficient method of producing diacyl chlorides of 2-alkoxy-1-chloroethenylphosphonic acids of formula ROCH = CClP(O)Cl2.
1 cl, 2 ex
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