第 49 卷第 5 期Vol. 49 No. 5
2019 年 10 月Oct 2019

所属栏目:农药及中间体

对氯甲基苯乙烯的合成工艺研究
程 超1,2,3,吴萍萍3,申屠宝卿1* (1. 浙江大学 化学工程联合国家重点实验室化学工程与生物工程学院,浙江 杭州 310027;2. 浙江众成包装材料股份有限公司,浙江 嘉善 314100;3. 浙江众立合成材料科技股份有限公司,浙江 平湖 314200)
摘 要:以4-氯苯乙烯(4)为原料,采用叠缩工艺,经格氏反应、还原反应和氯代反应合成了单一结构的对氯甲基苯乙烯(1)。化合物4 与镁屑生成格氏试剂,再与N,N-二甲基甲酰胺反应生成4-乙烯基苯甲醛(3)。化合物3 与NaBH4-NaOH的溶液反应合成得到4-乙烯基苯甲醇(2)。在DMF催化作用下,化合物2 与SOCl2和Et3N发生氯代反应生成对氯甲基苯乙烯(1),总收率达到52.6%。
关键词:对氯甲基苯乙烯;单一结构;叠缩工艺;4-氯苯乙烯
中图分类号:TQ242  文献标识码:A  文章编号:1009-9212(2019)05-0010-05
Synthetic Process of p-Chloromethyl Styrene
CHENG Chao1,2,3, WU Ping-ping3, SHENTU Bao-qing1* (1. State Key Lab of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; 2. Zhejiang Zhongcheng Packing Material Co., Ltd., Jiashan 314100, China; 3. Zhejiang Zhongli Synethtic Material Technology Co., Ltd., Pinghu 314200, China)
Abstract:Telescoped process was developed for the synthesis of single structural p-chloromethyl styrene (1) which was prepared via Grignard reaction, reduction reaction and chlorination reaction using 4-chlorostyrene (4) as raw material. 4-Vinylbenzaldehyde (3) was realized from compound 4 by treatment with magnesium and DMF in sequential order. Reduction reaction between compound 3 and NaBH4-NaOH solution afforded 4-vinylbenzyl alcohol(2). Chlorination reaction of compound 2 with SOCl2 and Et3N gave p-chloromethyl styrene(1) in the presence of DMF as a catalyst with a total yield of 52.6%.
Key words:p-chloromethyl styrene; single structure; telescoped process; 4-chlorostyrene
作者简介:程 超(1983-),男,湖南岳阳人,博士,主要从事原料药、精细化工中间体的研发与生产(E-mail:orgchemcheng@163.com)。
联 系 人:申屠宝卿,教授,主要从事高分子材料领域研究(E-mail:shentu@zju.edu.cn)。
收稿日期:2019-10-20