碳酸亚乙烯酯的合成工艺改进  

Improved synthetic Procedure of Vinylene Carbonate

作　　者：刘超程[1] 洪镛裕[1] 程菲[1] 

机构地区：[1]华东师范大学化学系,上海200062

出　　处：《精细化工》2005年第9期715-716,共2页Fine Chemicals

摘　　要：对碳酸亚乙烯酯合成的现有工艺进行了改进:氯化反应在55℃,四氯化碳作溶剂下进行;消除反应则以乙酸乙酯作溶剂,50℃氮气保护下进行。反应时间由原来的63 h缩短到9 h,将两步总收率提高了22.7%。用该工艺已为客户提供20 kg合格样品。To improve the synthetic procedure of vinylene carbonate, chlorination was carried out in CC14 at 55 ℃ and the elimination reaction was carried out in ethyl acetate under nitrogen atmosphere at 50 ℃. Thus the reaction time was shortened from 63 h to 9 h,and the total yield was raised by 22.7%. With this procedure 20 kg qualified sample have been offered to the customers.

关 键 词：碳酸亚乙烯酯 工艺改进 氯代反应 消除反应 

分 类 号：TQ225.52[化学工程—有机化工]