无共氧化剂参与条件下,以氧气为氧化剂,在含膦或含氮配体功能化离子液体和普通离子液体(溶剂)组成的混合体系中,RuCl3·H2O能有效催化多种醇的选择氧化,高选择性地生成相应的醛或酮.其中,配位能力较弱的含氮配体功能化离子液体更有利于提高钌催化剂的活性和选择性,但体系无法有效实现钌催化剂的循环使用,配体功能化离子液体本身的氧化降解是导致钌催化剂失活的根本原因.
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