2-乙烯基吡啶的合成研究  

The Synthesis of 2-Vinyl Pyridine

作　　者：闫晓红 赵庭栋 杨海燕 李善清 李广义 钟世强 

机构地区：[1]山东省海洋精细化工重点实验室山东省海洋化工科学研究院,山东潍坊262737

出　　处：《广东化工》2013年第15期62-63,共2页Guangdong Chemical Industry

基　　金：2011年山东省科技攻关计划(2011GHY11510)

摘　　要：研究了以2-羟乙基吡啶为原料,经脱水反应合成2-乙烯基吡啶的实验方法。探讨了反应过程中催化剂、反应温度、反应时间等影响因素,得出了适宜的反应条件：在固体氢氧化钾催化下,n（氢氧化钾）∶n（2-羟乙基吡啶）=0.2∶1,反应时间1~1.5 h,反应温度100℃,收率达到85%以上,产品纯度大于98%。反应过程催化剂采用循环套用的方法,减少了原料消耗,降低了生产成本,具有较强额实际生产意义。The dehydration reaction synthesis of 2-vinyl pyridine from 2-hydroxyethyl pyridine was researched.The influence of different factors in reaction process were analyzed,such as catalysts,the reaction temperature and time.The optimal reaction conditions were determined as following： the mole ratio of potassium hydroxide to 2-hydroxyethyl pyridine was 0.2 to 1,under the catalysis of solid potassium hydroxide,the reaction time was 1~1.5 h and the reaction temperature 100 ℃.Under these conditions,the yield of the target product was above 85 % with a purity of more than 98 %.Lower raw material consumption and lower production cost can be practical in production,with the method of catalyst circular form in reaction process.

关 键 词：2-乙烯基吡啶 2-羟乙基吡啶 催化合成 脱水反应 

分 类 号：TQ463.54[化学工程—制药化工]