9-Thiourea                  Cinchona alkaloid supported on mesoporous silica as a highly enantioselective, recyclable heterogeneous asymmetric catalyst

Peng Yu; Jing He; Canxiong Guo

doi:10.1039/B800640G

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9-Thiourea Cinchona alkaloid supported on mesoporous silica as a highly enantioselective, recyclable heterogeneous asymmetric catalyst†

Peng Yu,^a Jing He*^a and Canxiong Guo^a

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* Corresponding authors

^a State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, P. R. China
E-mail: jinghe@263.net.cn
Fax: +86 10 6442 5385
Tel: +86 10 6442 5280

Abstract

A readily recycled and regenerated heterogeneous catalyst of 9-thiourea epi-quinine supported on mesoporous silica exhibits enhanced enantioselectivity (up to 99.2%) in the asymmetric Friedel–Crafts reaction of imines with indoles.

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Supplementary files

Experimental details and catalytic analysis results PDF (403K)

Article information

DOI: https://doi.org/10.1039/B800640G
Article type: Communication
Submitted: 14 Jan 2008
Accepted: 19 Feb 2008
First published: 17 Mar 2008

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Chem. Commun., 2008, 2355-2357

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9-Thiourea Cinchona alkaloid supported on mesoporous silica as a highly enantioselective, recyclable heterogeneous asymmetric catalyst

P. Yu, J. He and C. Guo, Chem. Commun., 2008, 2355 DOI: 10.1039/B800640G

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