Studies on the Organophosphorus Insecticides

During the course of an investigation of organophosphorus insecticides, the reactions of trialkyl phosphites with ethyl or phenyl trichloroacetate, diethyl monochloro- or dichloromalonate and ethyl chlorocyanoacetate were attempted. It was cleared that the above reaction did not belong to the Arbuzov reaction but to the Perkow reaction and the products had the phosphorate forms and the carbonyl group of the carboxylic acid linked with phosphorus atom by the enol-form.