Issue 19, 2009
From the journal:

Organic & Biomolecular Chemistry

Hindered Brønsted bases as Lewis base catalysts

Sobia Tabassum,a   Oksana Sereda,a   Peddiahgari Vasu Govardhana Reddya  and  René Wilhelm*a  

* Corresponding authors

a Institute of Organic Chemistry, Clausthal University of Technology, Leibnizstr. 6, Germany
E-mail: rene.wilhelm@tu-clausthal.de
Fax: +49 5323 722834
Tel: +49 5323 723886

Abstract

KHMDS and KOtBu are well established as strong, hindered, non-nucleophilic Brønsted bases. However, in the present work these bases are applied as highly active Lewis base catalysts for the formal [2+2] cycloaddition of ketenes with aldehydes and imines.

Graphical abstract: Hindered Brønsted bases as Lewis base catalysts

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Article information

DOI
https://doi.org/10.1039/B908899G
Article type
Paper
Submitted
06 May 2009
Accepted
02 Jul 2009
First published
24 Jul 2009

Org. Biomol. Chem., 2009,7, 4009-4016

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Hindered Brønsted bases as Lewis base catalysts

S. Tabassum, O. Sereda, P. V. G. Reddy and R. Wilhelm, Org. Biomol. Chem., 2009, 7, 4009 DOI: 10.1039/B908899G

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