二烯丙基甲基胺/溴代烷系列季铵盐的合成与表征  

Synthesis and Characterization of Quaternary Ammonium Salts of Diallylmethylamine /Bromoalkane

作　　者：陶贤平[1] 张跃军[2] 

机构地区：[1]南通职业大学化学与生物工程学院,江苏南通226007 [2]南京理工大学化工学院,江苏南京210094

出　　处：《精细化工》2014年第10期1291-1296,共6页Fine Chemicals

摘　　要：以二烯丙基甲基胺（DAM）和不同碳链的1-溴代直链烷为主要原料，合成了4种二烯丙基甲基烷基（C12、C14、C16、C18）溴化铵单体，考察了反应温度、反应时间、原料摩尔配比及溶剂种类对产物收率的影响，优化了合成条件，用IR、1＾HNMR、13＾CNMR和元素分析对产物结构进行了表征。结果表明，乙醇是合适的溶剂，较佳反应温度为60～65℃，反应时间为72～78h，DAM与溴代烷的摩尔比为1：1．1，在该条件下产物收率分别为80．05％、78．52％、76．90％和62．82％，产物具有预期结构，并在极性溶剂中溶解性较好。Four kinds of diallylmethylalkyl （ C 12, C 14, C 16, C 18 ） ammonium bromide were synthesized by using diallylmethylamine and 1-bromoalkane straight chain alkanes as raw materials. The effects of reaction temperature, reaction time, molar ratio of raw materials and solvent type on the product yields were discussed. The synthesis conditions were optimized. The structures of the products were characterized by means of IR,1^HNMR,13^ CNMR and elemental analysis. The results show that the solvent of ethanol was appropriate, the better reaction temperature was 60 -65 ℃, reaction time was 72 -78 h and molar ratio of DAM to bromoalkane was 1 ： 1.1, under such conditions, the product yields were 80. 05%, 78.52%, 76.90% and 62. 82% for diallylmethylalkyl （ C12, C14, C16, C18 ） ammonium bromide,respectivly. The obtained products have expected structures and good solubility in polar solvents.

关 键 词：二烯丙基甲基胺 溴代烷 二烯丙基甲基烷基溴化铵 季铵盐 表征 精细化工中间体 

分 类 号：TQ423.121[化学工程]