Synthesis 2012(2): 184-193  
DOI: 10.1055/s-0031-1289638
FEATUREARTICLE
© Georg Thieme Verlag Stuttgart ˙ New York

Selective Copper- or Silver-Catalyzed Decarboxylative Deuteration of Aromatic Carboxylic Acids

Martin Rudzki, Ana Alcalde-Aragonés, Wojciech I. Dzik, Nuria Rodríguez, Lukas J. Gooßen*
Department of Chemistry, Organic Chemistry, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, 67663 Kaiserslautern, Germany
Fax: +49(631)2053921; e-Mail: goossen@chemie.uni-kl.de;
Further Information

Publication History

Received 10 October 2011
Publication Date:
05 December 2011 (online)

Abstract

The practical utility of decarboxylative transformations in organic synthesis is discussed, and the decarboxylative deuteration of (hetero)aromatic carboxylic acids is disclosed as a further example. Various monodeuterated arenes were synthesized under mild conditions, in a single step from easily accessible aromatic carboxylic acids and deuterium oxide. Copper catalysts were found to have the widest scope, but silver catalysts are superior for some ortho-substituted benzoates. A few substrates, e.g. quinoline-2-carboxylic acid, decarboxylate even in the absence of a metal catalyst.

29

See ref. 11c.

47

Gooßen, L. J. unpublished results.