聚乙二醇800相转移催化合成N,N-二乙基苯胺的研究  

Study on Phase Transfer Catalytic Synthesis of N,N-Diethylaniline with Polyethylene Glycol 800 as Catalyst

作　　者：田庆伟[1] 

机构地区：[1]大连交通大学环境科学与工程学院,辽宁大连116028

出　　处：《当代化工》2005年第2期109-111,共3页Contemporary Chemical Industry

摘　　要：用聚乙二醇800作相转移催化剂,在常压下由苯胺和溴乙烷合成了N,N-二乙基苯胺,研究了多种反应因素对目的产物产率的影响,提出了常压催化合成目的产物的最佳工艺条件是:n(苯胺)∶n(溴乙烷)=1∶1.50,催化剂用量0.40g,在40mL质量分数为50%的氢氧化钠溶液中,反应温度65℃,常压反应7h,产品收率71.5%。Using Polyethylene glycol 800 as phase transfer catalyst, N,N-diethylaniline is synthesized by reaction of aniline with bromoethane under atmospheric pressure, various reaction factors affecting the yield of the target product have been studied. The optimum parameters for preparing the target product by catalytic synthesiged process under normal pressure have been proposed. The optimal reaction conditions were : aniline -bromoethane molar ratio 1:1.50 in 40 ml 50 % sodium hydroxide solution, catalyst 0.4g,reaction temperature 65 ℃,reaction time 7h.under normal atmosphere. The yield of N,N-diethylaniline was 71.5 %.

关 键 词：聚乙二醇 相转移催化 N N-二乙基苯胺 

分 类 号：TQ226.3[化学工程—有机化工]