三光气法合成取代苯异氰酸酯  

Synthesis of substituted phenyl isocyanates by bis(trichloromethyl) carbonate method

作　　者：王向辉[1] 贺永宁 盘茂东[1] 林强[1] 

机构地区：[1]海南大学热带生物资源教育部重点实验室,海南海口570228 [2]陕西省延长石油集团炼化公司,陕西延安716000

出　　处：《应用化工》2008年第9期1019-1021,共3页Applied Chemical Industry

基　　金：海南省自然科学基金资助项目(20503)

摘　　要：以三光气和取代苯胺为原料，合成10种取代苯异氰酸酯。并且对原料的摩尔比、反应溶剂和引发剂等因素对收率的影响进行了研究，研究表明，当三光气与苯胺的摩尔比为1：2，引发剂为三乙胺，溶剂为甲苯、1，2-二氯乙烷或者乙酸乙酯，反应时间为3．5～5．5h的情况下，取代苯异氰酸酯产率为69．7％-92．4％。Ten substituted phenyl isocyanates were obtained with bis（trichloromethyl） carbonate and substituted aniline. Factors such as mole ratio of raw materials, the solvent and the initiators were also studied. The results show that the yield of substituted phenyl isoeyanates are 69.7% - 92.4% when the reaction conditions are as follows ： the mole ratio of bis （trichloromethyl） carbonate to substituted aniline is 1：2, the initiator is triethylamine, the solvent is toluene, 1,2-dichloroethane or ethyl acetate,the reaction time is 3.5 - 5.5 h.

关 键 词：三光气 取代苯胺 取代苯异氰酸酯 合成 

分 类 号：O623.763[理学—有机化学]