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N,N′-双月桂酰基乙二胺二乙酸钠合成方法的改进
引用本文:黄智,李成海,梁宇宁,韩朔暌,王连生. N,N′-双月桂酰基乙二胺二乙酸钠合成方法的改进[J]. 精细化工, 2002, 19(1): 1-3
作者姓名:黄智  李成海  梁宇宁  韩朔暌  王连生
作者单位:1. 南京大学环境学院,江苏,南京,210093
2. 广西大学化学系,广西,南宁,530004
3. 广西师范大学,化学系,广西,桂林,541004
摘    要:对表面活性剂N ,N′ 双月桂酰基乙二胺二乙酸钠的合成方法进行了改进。以乙二胺与氯乙酸钠反应制备乙二胺N ,N′ 二乙酸钠 (中间体 ) ,再与月桂酰氯反应制备终产物N ,N′ 双月桂酰基乙二胺二乙酸钠。用正交法对合成条件进行了探索。合成中间体最佳条件为温度 2 5℃ ,n(氯乙酸 )∶n(乙二胺 ) =(3 15~ 3 45 )∶1 0 0 ,反应时间 2 4h。终产物的合成条件为温度 15℃ ,反应时间为 2 4h。以IR、13CNMR和1HNMR确定结构

关 键 词:表面活性剂  乙二胺
文章编号:1003-5214(2002)01-0001-03
修稿时间:2001-02-28

Improvement on the Synthetic Method of N,N′-Dilauroylethylenediamine-diacetic Acid
HUANG Zhi ,LI Cheng hai ,LIANG Yu ning ,HAN Shuo kui ,WANG Lian sheng. Improvement on the Synthetic Method of N,N′-Dilauroylethylenediamine-diacetic Acid[J]. Fine Chemicals, 2002, 19(1): 1-3
Authors:HUANG Zhi   LI Cheng hai   LIANG Yu ning   HAN Shuo kui   WANG Lian sheng
Affiliation:HUANG Zhi 1,LI Cheng hai 2,LIANG Yu ning 3,HAN Shuo kui 1,WANG Lian sheng 1
Abstract:There was some improvement on the synthetic method of N,N ′ dilauroyl ethylenediamine diacetic acid.Ethylenediamine reacted with chloroacetic acid to form the intermediate sodium ethylenediamine N,N ′ diacetate which then reacted with lauroyl chloride to give N,N ′ dilauroyl ethylenediamine diacetic acid.The optimum reaction conditions were determined by orthogonal test.For the intermediate,chloroacetic acid and ethylenediamine in mole ratio 3.15-3.45 reacted at 25 ℃ for 24 h.For the final product,the reaction was carried out at 15 ℃ for 24 h.Structure of the product was certified by +1 HNMR,+{13}CNMR and IR.
Keywords:surfactant  ethylenediamine  
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