钼基催化剂在烯烃液相环氧化反应中的应用研究进展

介绍了钼络合物催化剂、固载化的钼络合物催化剂及MoO₃基的固体钼催化剂在烯烃液相环氧化反应中的应用。以有机过氧化物为氧化剂时，不同的钼基催化剂均表现出很好的催化性能，其中络合物中的配体对其催化性能有很大影响，并且可以通过引入手性配体实现对烯烃的不对称环氧化，而固体钼催化剂的性能则与载体上钼物种的种类密切相关。但绝大多数钼催化剂对H₂O₂参与的环氧化反应没有活性，开发对H₂O₂有催化活性的钼基催化剂是一个重要的研究方向。

Recent progress in Mo-containing catalysts for liquid phase epoxidation of olefins

Mo-containing catalysts for liquid phase epoxidation of olefins are reviewed, including Mo complexes, heterogenized Mo complexes and MoO_3-based solid catalysts. All these catalysts are very effective when using organic peroxide as single-oxygen donor. In case of Mo complexes, the catalytic performance is significantly affected by the ligands, and moreover, asymmetric epoxidation can be realized by the introduction of chiral ligands. For MoO_3-based solid catalysts, the catalytic properties have strong relations with surface molybdenum species. While in case of using H_2O_2 as oxygen donor, most of the reported Mo-containing catalysts are inactive. Therefore, it is a valuable field to develop Mo-containing catalyst that can activate H_2O_2 for the epoxidation of olefins.