CuCl2/FeCl3催化氧化制备2,3,5-三甲基-1,4-对苯醌反应网络研究Reaction Networks of 2,3,5-Trimethyl-1,4-Benzoquinone Synthesis Catalyzed by CuCl2/FeCl3
尹红,李倩,陈志荣,袁慎峰
摘要(Abstract)：
以CuCl_2/FeCl_3水溶液为催化剂,氧气为氧化剂,正己醇为溶剂进行2,3,6–三甲基苯酚(TMP)气液液三相催化氧化制备2,3,5-三甲基-1,4-对苯醌(TMQ)的反应。通过对反应产物进行结构鉴定和定量分析,推测反应途径;同时考察反应时间、反应温度、催化剂用量、FeCl_3加入量对反应产物组成的影响。结果表明反应过程中会生成2,3,6-三甲基-4-氯苯酚、2,3,5-三甲基-1,4-对苯二酚和2,2,3,3,5,5-六甲基-4,4-联苯二酚等多种中间产物和副产物。在CuCl_2催化体系中加入助催化剂FeCl_3可使主产物TMQ的选择性由70.39%提高到82.91%。研究最后提出了一个包含平行和连串反应的反应网络。
关键词(KeyWords)： 2,3,6-三甲基苯酚;反应网络;CuCl2;FeCl3;2,3,5-三甲基-1,4-对苯醌
基金项目(Foundation): 浙江省公益性技术应用研究计划(2013C31091)
作者(Author): 尹红,李倩,陈志荣,袁慎峰
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