聚乙二醇500相转移催化合成N,N—二乙基苯胺  

Study of Phase Transfer Catalytic Synthesis of N,N-Diethylaniline with Polyethylene Glycol 500 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：《大连交通大学学报》2010年第1期77-80,共4页Journal of Dalian Jiaotong University

摘　　要：用聚乙二醇500作相转移催化剂,在常压下由苯胺和溴乙烷合成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,提出常压催化合成目的产物的最佳工艺条件是:苯胺和溴乙烷的摩尔比为1∶1.75,催化剂用量0.60 g,在45 mL 30×10-2的氢氧化钠溶液中,反应温度75℃,常压反应7 h,产品收率95.0%.Using polyethylene glycol 500 as phase transfer catalyst, N, N-Diethylaniline is synthesized by reaction of aniline with bromoethane under atmospheric pressure. The factors affecting the yield of the target product are studied. The optimal reaction conditions are as follows ： 1 ： 1.75 of aniline to bromoethane molar ratio, and 30 × 10^-2 sodium hydroxide in 45 mL solution with 0.6 g catalyst at 75℃ for 7 h under normal atmosphere. The yield of N, N-diethylaniline is 95.0%.

关 键 词：聚乙二醇 相转移催化 N  N-二乙基苯胺 

分 类 号：TQ246.31[化学工程—有机化工]