Kinetic study on nucleophilic substitution reactions of chloride with methyl benzenesulfonate as substrate in different solvents(氯化物与苯磺酸甲酯在不同溶剂中亲核取代反应的动力学研究)

LAIGuo-hua(赖国华); HUKe-cheng(胡科诚); ZHOURen-xian(周仁贤); ZHENGXiao-ming(郑小明)

doi:zjup/1008-9497.2005.32.5.562-566

Zhejiang Daxue xuebao. Lixue ban (Sep 2005)

Kinetic study on nucleophilic substitution reactions of chloride with methyl benzenesulfonate as substrate in different solvents(氯化物与苯磺酸甲酯在不同溶剂中亲核取代反应的动力学研究)

LAIGuo-hua(赖国华),
HUKe-cheng(胡科诚),
ZHOURen-xian(周仁贤),
ZHENGXiao-ming(郑小明)

Affiliations

LAIGuo-hua(赖国华): 1.Institute of Catalysis, Zhejiang University, Hangzhou 310028, China( 1.浙江大学催化研究所，浙江杭州 310028)
HUKe-cheng(胡科诚): 1.Institute of Catalysis, Zhejiang University, Hangzhou 310028, China( 1.浙江大学催化研究所，浙江杭州 310028)
ZHOURen-xian(周仁贤): 1.Institute of Catalysis, Zhejiang University, Hangzhou 310028, China( 1.浙江大学催化研究所，浙江杭州 310028)
ZHENGXiao-ming(郑小明): 1.Institute of Catalysis, Zhejiang University, Hangzhou 310028, China( 1.浙江大学催化研究所，浙江杭州 310028)

DOI
Journal volume & issue: Vol. 32, no. 5
pp. 562 – 566

Abstract

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用动力学方法研究了不同温度下氯化物与苯磺酸甲酯在丙酮、2-丁酮、环己酮、乙腈、DMF和甲醇中的亲核取代反应.反应的动力学行为可用SN2机理来解释.在一定溶剂中不同温度(5~45 ℃)的反应速率常数可用Arrhenius方程很好地关联.根据Arrhenius方程和过渡态理论分别求得了活化能、指前因子、活化焓和活化熵.对溶剂效应和焓-熵补偿作用进行了讨论.在不同溶剂中以活化能作为标度的Cl-的亲核反应性顺序为：环己酮>丙酮>2-丁酮>DMF>乙腈>甲醇.

Published in Zhejiang Daxue xuebao. Lixue ban

ISSN: 1008-9497 (Print)
Publisher: Zhejiang University Press
Country of publisher: China
LCC subjects: Science: Mathematics: Instruments and machines: Electronic computers. Computer science; Science: Physics
Website: https://www.zjujournals.com/sci/EN/1008-9497/home.shtml

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