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Angew Chem Int Ed Engl. 2014 Nov 03;53(45):12186-90. doi: 10.1002/anie.201407357. Epub 2014 Sep 22.

Carbon dioxide reduction to methylamines under metal-free conditions.

Angewandte Chemie (International ed. in English)

Enguerrand Blondiaux, Jacky Pouessel, Thibault Cantat

Affiliations

  1. CEA, IRAMIS, NIMBE, CNRS UMR 3299, 91191 Gif-sur-Yvette (France) http://iramis.cea.fr/Pisp/thibault.cantat/index.htm.

PMID: 25243949 DOI: 10.1002/anie.201407357

Abstract

The first metal-free catalysts are reported for the methylation of amines with carbon dioxide. Proazaphosphatrane superbases prove to be highly active catalysts in the reductive functionalization of CO2, in the presence of hydroboranes. The new methodology enables the methylation of N-H bonds in a wide variety of amines, including secondary amines, with increased chemoselectivity.

© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: amines; boranes; carbon dioxide; organocatalysis; reduction

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