S-烷基O-芳基硫代磷酸衍生物的合成及其杀虫活性的研究

研究了O,O-二烷基O-芳基硫代磷酸酯与三氧氧磷的异构化氯化反应。由此生成的S-烷基O-芳基硫代磷酰再与亲核试剂(醇,酚,硫醇,硫酚,伯胺或氨)在缚酸剂存在下反应,合成了42种化合物,其中34种未见文献报道。本文还研究了这类化合物的杀虫活性。

Studies on the Synthesis and Insecticidal Activities of S-Alkyl O-Aryl Thiophosphoric Derivatives

Forty-two compounds, among them thirty-four new compounds of S-alkyl O-aryl thiophosphoric derivatives have been synthesized by using a new convenient method which is based on the isomerization-chlorination of O,O-dialkyl O-aryl phosphorothionate with phosphoryl chloride to give S-alkyl O-aryl thiophosphorochloride. Then, this thiophosphorochloride reacts with various nucleophiles, e. g. alcohol, phenol, mercaptan, thiophenol, ammonia, amine, in the presence of acid-binding agent to obtain S-alkyl O-aryl thiophosphoric derivatives, e. g. S-alkyl O-alkyl (or aryl) O-aryl phosphorothiolate, S-alkyl S-alkyl (or aryl) O-aryl phospho-rodithiolate, S-alkyl O-aryl phosphorothiolamide. The insecticidal activities of the compounds prepared towards bean aphid (Aphis laburni), cotton red spider (Tetranychus telarius), army worm(Leucania separata) and house fly (Musca domestica) have also been tested.