A Convenient Synthesis of 1‐Tosyl‐3, 4‐Dimethyl Imidazolium Salt and N,N,N′‐Trisubstituted Ethylendiamine Derivatives
作者:Donghong Li、Junsheng Hao、Bing Deng、Wei Guo、Fangjun Huo、Yongbin Zhang、Chizhong Xia
DOI:10.1081/scc-200030990
日期:2004.1.1
Abstract 1‐Tosyl‐3,4‐dimethyl imidazolium iodide 3 was prepared by convenient cyclization, sulfonylation, and methylation from 4‐methyl‐2‐imidazoline, which was obtained by the reaction of ethyl formate with 1,2‐diaminopropane. Monofunctional carbon nucleophiles reacted with 3 to yield a series of N,N,N′‐trisubstituted ethylendiamine derivatives.
摘要 甲酸乙酯与 1,2-二氨基丙烷反应得到 4-甲基-2-咪唑啉,通过方便的环化、磺酰化和甲基化反应制备了 1-甲苯磺酰基-3,4-二甲基咪唑鎓碘化物 3。单官能碳亲核试剂与 3 反应生成一系列 N,N,N'-三取代的乙二胺衍生物。