作者:Yajie Jiang、Tao Geng、Qiuxiao Li
DOI:10.1007/s11743-011-1289-9
日期:2012.1
quaternary ammonium compounds from various tertiary amines and the (environmentally friendly) alkylation agent dimethyl carbonate were carried out. The effects of reaction temperature, reaction time, material mol ratio and solvent dosage on quaternization were examined, and the optimum reaction conditions were determined. Under the optimum conditions, the conversions of mono‐alkyl tertiary amines could
进行了由各种叔胺和(对环境友好的)烷基化剂碳酸二甲酯制备季铵化合物的研究。研究了反应温度,反应时间,原料摩尔比和溶剂用量对季铵化反应的影响,确定了最佳反应条件。在最佳条件下,单烷基叔胺的转化率可以达到99%以上,而二烷基叔胺的转化率可以达到95%以上。此外,一系列带有新抗衡离子的季铵盐(HCO 3,CH 3 COO,CH 3 CH 2 COO,CH 3通过水解碳酸甲酯季铵盐或通过碳酸甲酯季铵盐与相应酸的离子交换反应合成CH(OH)COO。