Molybdenum containing surface complex for olefin epoxidation

被引：21

作者：

Yang, QH

Copéret, C

Li, C ^{[1
]}

Basset, JM

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

[2] CPE, Lab Chim Organomet Surface, F-69626 Villeurbanne, France

来源：

NEW JOURNAL OF CHEMISTRY | 2003年 / 27卷 / 02期

关键词：

D O I：

10.1039/b206013b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Silica-supported molybdenum surface complexes were prepared by the reaction between (N=) Mo(OtBu)(3) and silica via displacement of the tert-butoxy ligands for siloxyls from the silica surface. The structure of the surface molybdenum complexes was well defined by in-situ FT-IR, elemental analysis, H-1 NMR and C-13 CP/MAS NMR techniques. The surface complexes could undergo alcoholysis reaction with CD3OD and CH3OH in the same way as free (N =) Mo(OtBu)(3) and they show high catalytic activity and selectivity in olefin epoxidation. Initial rates up to 24.9 mmol epoxide (mmol Mo)(-1) min(-1) were achieved in the epoxidation of cyclohexene using TBHP as oxidant.

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页码：319 / 323

页数：5

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