18-冠醚-6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 1,4,7,10,13,16-Hexaoxacyclooctadecane

作　　者：田庆伟[1] 

机构地区：[1]大连交通大学环境化学与工程学院,辽宁大连116028

出　　处：《大连交通大学学报》2012年第1期89-93,共5页Journal of Dalian Jiaotong University

摘　　要：用18-冠醚-6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,提出了常压催化合成目的产物的最佳工艺条件:苯胺和溴乙烷的摩尔比为1∶1.50,催化剂用量0.8 g,在45 mL 35×10-2(质量分数)的氢氧化钠溶液中,反应温度55℃,常压反应4 h,产品收率73.1%.催化剂通过溶剂萃取方法可以回收,总萃取率为20%.1,4,7,10,13,16-Hexaoxacyclooctadecane is used as phase transfer catalyst, and 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 molar ratio 1 ： 1.5 of aniline to bromoethane, 35 × 10^-2 in 45 mL sodium hydroxide solution, 0.8 g catalyst at 55℃ for 4h under normal atmosphere. The yield of the N,N-diethylaniline is 73.1%.

关 键 词：18-冠醚-6 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]