Substituent effects in aromatic substitution of aryltriethyltin compounds by mercuric halides
作者:M. Reza Sedaghat-Herati、Taghi Sharifi
DOI:10.1016/0022-328x(89)88039-8
日期:1989.3
Second-order rate constants are reported for the reaction of some YC6H4SnEt3 compounds with mercurichalides in tetrahydrofuran, and show that the reaction is one of low selectivity. The substituent effects can be correlated only in terms of Hammett σ-constants, and the data for the meta-methoxy group are anomalous. The results indicate that the rate determining step involves reaction of a π-complex
报道了一些YC 6 H 4 SnEt 3化合物与卤化汞在四氢呋喃中反应的二级速率常数,表明该反应是低选择性的反应之一。仅就哈米特σ常数而言,取代基效应可以相关,并且间甲氧基的数据是反常的。结果表明,速率确定步骤涉及π-络合物的反应。报告激活参数,并与建议的机制一致。
The Mechanism of the Reaction of Mercuric Halides with Dialkyl and Diarylmercury Compounds