非均相金属钯配体催化剂的研究进展

Suzuki-Miyaura反应是一类具有工业化应用前景的C-C键合成反应。反应多数是在均相金属钯配体催化剂催化下完成。均相催化具有催化效率高、产品选择性好等优点,但催化剂回收困难,增加了反应成本,限制了其应用。非均相金属钯配体催化剂是将均相金属钯配体催化剂固载到载体上,使其在不影响反应活性和选择性的同时,实现循环使用,已成为Suzuki-Miyau-ra反应的研究热点。对几年来以有序介孔材料MCM-41和SBA-15、无机载体SiO2和Al2O3、聚苯乙烯和聚乙二醇等合成材料以及天然高分子材料为载体,制备非均相金属钯配体催化剂的方法及其催化性能进行了综述。

Progress in Research of Heterogeneous Metallic Palladium Ligand Catalysts

The Suzuki-Miyaura coupling reaction （S-M）, suitable for construction of aryl-aryl bond formation, had a promising industrial application. Generally, the homogeneous catalysts were used to catalyze the S-M reactions. The homogeneous catalysis had some advantages of high catalyzed efficiency and selectivity of product and so on, and some disadvantages which increased the cost of reactions and limited application, such as the difficult recycle of catalysts after S-M reaction. The heterogeneous metallic palladium ligand catalysts were prepared by anchoring the homogeneous metallic palladium ligands to supports. It had been the highlight on S-M reaction research because of its recycle use for many times without affecting the catalytic activity and selectivity. Preparation methods and catalysis properties of the heterogeneous metallic palladium ligand catalysts were summarized on the base of the mesoporous materials such as MCM-41 and SBA-15,inorganic supports such as SiO2 and Al2O3,artificial materials such as polystyrene and polyethyleneglycol and natural polymer supports recently.