【摘要】 经研究发现,在三苯膦或二苯硫醚催化下节叉氯亚胺（Ia-b）可热分解成相应的腈。完成了关于Ia-d和二苯硫醚在苯中反应的动力学研究。速率按拟一级动力学方程计算。与Hammettσ值的相互关系（ρ=-1.05）和对la及IaD的动力学同位素效应（k_H/k₀=1）表明,其反应历程包括最初生成氯硫盐的平衡,以及决定反应速度的苄叉亚胺对锍硫原子亲核进攻的步骤。更多还原

【Abstract】 Thermal decomposition of benzalchloroimines(Ia-b)into the corresponding nitriles was found to be catalyzed by triphenyl phosphine or diphenyl sulfide. The kinetic study on the reaction of Ia-d with diphenyl sulfide in benzene was carried out. The rates were calculated by the pseudo first order kinetic equation.Hammett correlation with o value (ρ=-1.05) and the kinetic isotope effect for Ia and IaD (k_H/k_D=1)show that the mechanism involves initial equilibrium formation of chlorosulfonium salt followed by rate-determining nucleophilic attack of benzalimine to the sulfo-nium sulfur.更多还原