Issue 2, 2003
From the journal:

New Journal of Chemistry

Molybdenum containing surface complex for olefinepoxidation

Qihua Yang,ab   Christophe Copéret,a   Can Li*b  and  Jean-Marie Basseta  

* Corresponding authors

a Laboratoire de Chimie Organométallique de Surface, CPE, Villeurbanne Lyon, France
E-mail: basset@cpe.fr
Fax: 33(0)472431795
Tel: 33 (0)472431794

b State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
E-mail: canli@dicp.ac.cn
Web: http://www.canli.dicp.ac.cn
Fax: (86) 4114694447
Tel: (86) 4114379070

Abstract

Silica-supported molybdenum surface complexes were prepared by the reaction between (N[triple bond, length as m-dash])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, 1H NMR and 13C CP/MAS NMR techniques. The surface complexes could undergo alcoholysis reaction with CD3OD and CH3OH in the same way as free (N[triple bond, length as m-dash])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.

Graphical abstract: Molybdenum containing surface complex for olefin epoxidation

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Article information

DOI
https://doi.org/10.1039/B206013B
Article type
Paper
Submitted
21 Jun 2002
Accepted
26 Sep 2002
First published
12 Dec 2002

New J. Chem., 2003,27, 319-323

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Molybdenum containing surface complex for olefin epoxidation

Q. Yang, C. Copéret, C. Li and J. Basset, New J. Chem., 2003, 27, 319 DOI: 10.1039/B206013B

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