Synthesis of Cloquintocet-mexyl and Its Reaction Kinetics

doi:10.11944/j.issn.1000-0518.2015.04.150040

Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (4): 416-421.DOI: 10.11944/j.issn.1000-0518.2015.04.150040

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Synthesis of Cloquintocet-mexyl and Its Reaction Kinetics

ZHANG Yue, PENG Yangfeng^*

School of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China

Received:2015-02-02 Revised:2014-10-30 Published:2015-04-10 Online:2015-04-10
Contact: Corresponding author:PENG Yangfeng, associate professor; Tel/Fax:021-64252345; E-mail:1046758648@qq.com; Research interests:applied chemistry
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Abstract

Abstract:

In order to increase the yield and optimize the process of preparation for cloquintocet-mexyl in industrial, the synthesis of cloquintocet-mexyl in this paper was investigated using 5-chloro-8-hydroxyquinoline and methylhexyl chloroacetate as raw materials. The alkali used in the reaction, reaction time, the molar ratio of 5-chloro-8-hydroxyquinoline to methylhexyl chloroacetate and the molar ratio of potassium carbonate to methylhexyl chloroacetate were determinated. The kinetic equation for this reaction was established. The result shows that the synthesis of cloquintocet-mexyl is a second-order reaction. The kinetics experiments were carried out at 323 K, 328 K, 333 K, 339 K, respectively. The frequency factor is 49.82 kJ/mol and the activation energy is 49.82 kJ/mol which are obtained from the reaction rate constants at different temperatures by using the Arrhenius equation. The reaction kinetic equation is -r₂=-dc2dt=1.46×10⁸e(-49.82×103/RT)c₁c₂. It provides the basic data for the industrial development of cloquintocet-mexyl.

Key words: cloquintocet-mexyl, chloro-hydroxyquinoline, methylhexyl chloroacetate, reaction kinetic

CLC Number:

ZHANG Yue, PENG Yangfeng . Synthesis of Cloquintocet-mexyl and Its Reaction Kinetics[J]. Chinese Journal of Applied Chemistry, 2015, 32(4): 416-421.

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Synthesis of Cloquintocet-mexyl and Its Reaction Kinetics

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