Kinetics and Mechanism of the Anilinolyses of O-Methyl, O-Propyl and O-Isopropyl Phenyl Phosphonochloridothioates in Acetonitrile
作者:Hasi Rani Barai、Md. Ehtesham Ul Hoque、Mijin Lee、Hai Whang Lee
DOI:10.5012/bkcs.2013.34.4.1096
日期:2013.4.20
N2 mechanism is proposed for the anilinolyses of 1, 3 and 4. The anilinolysis rates of the phosphonochloridothioates are predominantly dependent upon the steric effects over the inductive effects of the two ligands. The deuterium kinetic isotope effects (DKIEs; kH/kD) are primary normal with 1 and 3, while secondary inverse with 4. Primary normal and secondary inverse DKIEs are rationalized by frontside
N2 机制被提出用于 1、3 和 4 的苯胺分解。硫代膦酰氯的苯胺分解速率主要取决于空间效应而不是两个配体的诱导效应。氘动力学同位素效应 (DKIE;kH/kD) 在 1 和 3 时是初级正态,而在 4 时是次级反相。初级正态和次级反相 DKIE 分别通过正面和背面亲核攻击过渡态合理化。硫代膦酰氯的 DKIE 与两个配体没有任何一致的相关性。