新型环氧树脂固化剂2-乙基-4-甲基咪唑三嗪的合成研究  

Improvement on Synthesis Process of New Curing Agent Imidazole Triazine for Epoxy Resin

作　　者：杜孔孔 马成龙 沈健 雍学锋 DU Kong-kong;MA Cheng-long;SHEN Jian;YONG Xue-feng(Ningxia Joie New Material Technology Co.,Ltd.,Ningxia Lingwu 750411,China)

机构地区：[1]宁夏倬昱新材料科技有限公司,宁夏灵武750411

出　　处：《广州化工》2024年第3期43-45,共3页GuangZhou Chemical Industry

基　　金：宁夏回族自治区重点研发计划(引才专项)(No:2021BEB04082)。

摘　　要：合成并优化了环氧树脂固化剂2-乙基-4-甲基咪唑三嗪。第一步以2-乙基-4-甲基咪唑和丙烯腈为原料,经迈克尔加成反应,得到中间体1-氰乙基-2-乙基-4-甲基咪唑;该反应在水作溶剂、60℃保温8小时条件下,产率达到最优95.5%。第二步以双氰胺为原料,经环合反应得到产物;该反应在乙二醇单甲醚作溶剂、氢氧化钠作碱,123℃反应6 h条件下时得率达到86.4%。经优化后的总收率可达82.5%。The epoxy curing agent 2E4MZ-A was synthesized and optimized.Started with 2-ethyl-4-methylimidazole and acrylonitrile,the intermediate 2E4MZ-CN was obtained through Michael addition.Water was selected as solvent,and optimized condition was 60℃for 8 h.In the second cyclization step,2-methoxyethanol and sodium hydroxide were optimized as solvent and base respectively.The total yield can reach 82.5%after optimization.

关 键 词：环氧树脂固化剂 咪唑三嗪 腈丙基咪唑 1 3 5-三嗪合成 

分 类 号：TQ433[化学工程]