Kinetics and Mechanism of the Benzylaminolysis of O,O-Diethyl S-Aryl Phosphorothioates in Dimethyl Sulfoxide
作者:Keshab Kumar Adhikary、Hai-Whang Lee
DOI:10.5012/bkcs.2011.32.10.3587
日期:2011.10.20
nucleophiles. The kinetic results arecompared with those of the benzylaminolysis of O,O-diphenyl Z-S-aryl phosphorothioates.Key Words : Phosphoryl transfer reaction, Benzylaminolysis, O,O-Diethyl Z- S-aryl phosphorothioate, Cross-interaction constant, Concave downward free energy correlationIntroductionThe various phosphoryl and thiophosphoryl transfer reac-tions have been studied kinetically by this lab: anilinolysis
= 0.91,强碱性亲核试剂。提出的反应机理是一个逐步过程,其中限速离去基团从中间体中排出,包括强碱性亲核试剂的背面亲核攻击和弱碱性亲核试剂的正面攻击。与O,O-二苯基Z-S-芳基硫代磷酸酯的苄氨解动力学结果进行了比较。关键词: 磷酰基转移反应, 苄氨解, O,O-二乙基Z-S-芳基硫代磷酸酯, 交叉相互作用常数, 凹下自由能相关介绍本实验室对各种磷酰基和硫代磷酰基转移反应进行了动力学研究:苯胺分解,