对α-甲基苯基和α-氯苯基氯硫代甲酸酯溶剂解中电子效应的评估。
Evaluation of Electronic Effects in the Solvolyses of -Methylphenyl and -Chlorophenyl Chlorothionoformate Esters.
作者信息
D'Souza Malcolm J, Hampton Olivia N, Sansbury Brett M, Kevill Dennis N
机构信息
Department of Chemistry, Wesley College, 120 N. State Street, Dover, Delaware 19901-3875, USA.
Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115-2862, USA.
出版信息
J Chem. 2013;2013. doi: 10.1155/2013/248534.
Abstract
The solvolyses of -tolyl chlorothionoformate and -chlorophenyl chlorothionoformate are studied in a variety of organic mixtures of widely varying nucleophilicity and ionizing power values. This solvolytic data is accumulated at 25.0 °C using the titration method. An analysis of the rate data using the extended (two-term) Grunwald-Winstein equation, and the concept of similarity of substrates based on their ratios, shows the occurrence of simultaneous side-by-side addition-elimination and unimolecular S1 mechanisms.
摘要
在各种亲核性和电离能力值差异很大的有机混合物中，研究了对甲苯基氯硫代甲酸酯和对氯苯基氯硫代甲酸酯的溶剂解反应。该溶剂解数据是在25.0℃下使用滴定法积累的。使用扩展（两项）Grunwald-Winstein方程对速率数据进行分析，并基于底物的比率概念分析底物的相似性，结果表明同时发生了并列的加成-消除反应和单分子S1机制。
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