高效水相1，4-共轭加成反应催化剂的制备

摘要

A novel immobilized Rh( I) organometallic catalyst ( Rh( I)-SBA-15) was prepared by P123 sur-factant-directed co-condensation of Rh(I) organometal-bridged silanes and ethyl orthosilicate (TEOS).XRD, TEM and N2 adsorption-desorption isotherms,FT-IR, NMR, XPS characterizations demonstrated the structure and components of the as-prepared Rh( I)-SBA-15.During 1,4-conjugate addition reaction in water medium, the Rh(I)-SBA-15 heterogeneous catalyst not only showed high efficiency and selectivity, it also could be used repetitively for 4 times without significant deactivation, showing a good potential in industry application.%以正硅酸乙酯和有机金属铑硅烷为硅源，在模板剂P123作用下共聚，合成出有序介孔结构有机金属铑非均相催化剂Rh（ I）-SBA-15．通过XRD，TEM，N2吸附-脱附等温线，FT-IR， NMR， XPS等手段对其结构和组分进行了表征；考察了该非均相催化剂在水相中1，4-共轭加成反应中的催化性能．结果表明，该催化剂不仅具有较高的催化活性，且可以多次重复使用，显示了较好的工业应用前景．