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在研究O,O二烷基O芳基硫代磷酸酯(1)与三氯氧磷的异构化氯化反应机理时,发现1的异构化产物O,S二烷基硫代磷酸酯(4)能顺利地与三氯氧磷反应,4中的烷氧基被氯原子取代,得到的产物S烷基硫代磷酰氯酯(2)和O烷基磷酰二氯酯3.当4中的R为烷基或苯基,R’为烷氧基、芳氧基、烷硫基、芳硫基、二烷基氨基、氮杂环基、苯基和甲基,R”为C1—4烷基时,4的氯化反应也能顺利发生,并得到较高产率的预期产物
In the study of O, O dialkyl O aryl phosphorothioate (1) and phosphorus oxychloride isomerization chlorination reaction mechanism, we found that 1 isomerization products O, S dialkyl sulfides The phosphorothioate (4) can be smoothly reacted with phosphorus oxychloride, the alkoxy group of 4 is replaced by a chlorine atom, and the obtained product S-alkyl thiophosphoryl chloride (2) and O-alkyl phosphoryl di Chloride 3. When R4 is alkyl or phenyl, R ’is alkoxy, aryloxy, alkylthio, arylthio, dialkylamino, azacyclic, phenyl and methyl, R "is C1-4 alkyl, the 4 chlorination reaction can be smoothly, and to obtain a higher yield of the desired product