The Mechanism of the Reaction of (Aryloxy)trimethylstannane with Methanesulfonyl Chloride. Solvent and Substituent Effects on the Rate of the Reaction
作者:Seizi Kozuka、Shigeru Yamaguchi、Waichiro Tagaki
DOI:10.1246/bcsj.56.573
日期:1983.2
A kinetic study has been conducted on the reactions of (aryloxy)trimethylstannanes with methanesulfonyl chloride giving chlorotrimethylstannane and aryl methanesulfonates. The reaction was found to obey a second order kinetic equation. The solvent effect on the rate of the reaction appeared obscure although a small rate enhancement was observed in a polar solvent. Substituent effect of the aryloxyl
对(芳氧基)三甲基锡烷与甲磺酰氯反应生成氯三甲基锡烷和甲磺酸芳基酯的反应进行了动力学研究。发现反应服从二级动力学方程。尽管在极性溶剂中观察到小的速率增强,溶剂对反应速率的影响似乎不明显。发现芳氧基的取代基效应取决于所使用的溶剂,同时观察到明显的等速关系。已建议该反应采用电荷分离的四中心过渡态。