Synthesis of Higher Pure Tribufos And Research of Its Impurity
LIU Nian (Dalian Razer Pesticides Co., Ltd. Research Institute, Dalian 116100, China)
Tribufos is a defoliating agent. It is obtained by the reaction of the compound, which is prepared through the Thio-alkylation of PCl_3 with n-butane thiol, and hydrogen peroxide .The components of the product are analyzed using chromatography-mass spectrometry. 8 compounds are identified and given a reasonable explain for each one. The purity of the product can reach 97% by taking effective measure, such as controlling the reactive temperature when n-butane thiol is separated to drop, removing the extra n-butane thiol until its concentration is below 0.1% before Oxidation. The overall yield is 80%.
【CateGory Index】： TQ452.4