欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
以四甲基胍（TMG）为催化剂，乙腈（ACT）为溶剂，利用C02、胺和烷基氯三组分在0．10MPa，70～80℃条件下，一锅法有效合成氨基甲酸酯类化合物，并研究了收率和产率的影响．结果表明，最优反应条件为，n（胺）：n（烷基氯）=3～4、反应温度70～80℃、反应时间2～3h、酯分离收率达68．7％～81．3％，酯纯度达到99．9％．
英文摘要：
Carbamates were prepared by one-pot synthesis from carbon dioxide, amine and alkyl chloride with N,N,N,N-tetramethyl guanidine （TMG） as catalyst, acetonitrile （ACT） as solvents at a pressure of 0.10 MPa and temperature of 70-80℃. Effects of the converting ratio and yield were investigated. The results showed that the optimum technological conditions should be that n（amine） ： n（alkyl chloride）= 3-4, the reaction temperature was 70-80℃, and reaction time was 2-3 h. The purity of the refined of carbamates was 99.9%, and the yield of carbamates was in the range of 68.7%-81.3%. Keywords carbamate; carbon dioxide; nucleophile substitution; steric effect
同期刊论文项目
同项目期刊论文
期刊信息
位置：