【摘要】 在环境友好介质水中,1-正丁基-4-吡啶甲醛溴化物离子液体与壳聚糖发生反应生成了离子液体键合壳聚糖衍生物(BFPy Br-b-CS).通过红外光谱、核磁共振、X-射线衍射和热重等分析技术对离子液体键合壳聚糖衍生物进行了结构表征.以BFPy Br-b-CS为催化剂,研究了其在无溶剂条件下对芳香胺和碳酸乙烯酯进行N-羟烷基化反应的催化性能,讨论了反应条件(催化剂用量、反应底物的物料比、反应温度和反应时间)对催化性能的影响.更多还原

【Abstract】 1-butyl-4-formylpyridin-1-ium bromide bonded on chitosan derivative( BFPy Br-b-CS) was synthesized by the reaction of 1-butyl-4-formylpyridin-1-ium bromide with chitosan in the environmentally friendly water medium. The characterization of BFPy Br-b-CS was carried out by Fourier transform infrared spectroscopy( FT-IR),the nuclear magnetic resonance( NMR),X-ray diffraction( XRD) and the thermo gravimetric( TG),respectively. Using BFPy Br-b-CS as catalyst,the catalytic performance on the N-hydroxyl alkylation reaction of aromatic amine and ethylene carbonate under the solvent-free conditions was studied. Effect of the reaction conditions( for example: catalyst dosage,reaction material ratio,reaction temperature and reaction time etc.) on its catalytic activity was investigated in details.更多还原