摘要/Abstract

制备了四种壳聚糖固载的铜盐催化剂，以这四种催化剂尝试催化C-O和C-N的偶联反应，实验结果显示，壳聚糖固载的氧化亚铜可以高效催化芳基卤代烃与酚及含氮杂环的偶联反应，且该方法的底物适应性广.实验结果还显示，该催化剂具有易回收、可重复利用的优点，且多次重复利用后该催化剂的催化活性未明显减弱.
关键词: 壳聚糖@Cu₂O, 合成, 催化, 偶联反应
The coupling reactions of phenols and nitrogen hetereocycles with aryl halide were catalyzed by a highly active, readily available and easily recoverable heterogeneous Cu catalyst which was prepared by simply stirring an suspension of chitosan in solvent with copper compound. The result showed that chitosan@Cu₂O catalyst catalyzed the coupling reactions of aryl halides with phenols and nitrogen hetereocycles to readily give the corresponding products in moderate to excellent yields. The highly active catalyst can be reused many times without losing its catalytic activity.
Key words: chitosan@Cu catalyst, synthesize, catalyze, Cross-coupling


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