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Science 4 August 2006:
Vol. 313. no. 5787, pp. 662 - 664
DOI: 10.1126/science.1128684

Reports

Synthesis of Biaryls via Catalytic Decarboxylative Coupling

Lukas J. Gooßen,* Guojun Deng, Laura M. Levy

We present a safe and convenient cross-coupling strategy for the large-scale synthesis of biaryls, commercially important structures often found in biologically active molecules. In contrast to traditional cross-couplings, which require the prior preparation of organometallic reagents, we use a copper catalyst to generate the carbon nucleophiles in situ, via decarboxylation of easily accessible arylcarboxylic acid salts. The scope and potential economic impact of the reaction are demonstrated by the synthesis of 26 biaryls, one of which is an intermediate in the large-scale production of the agricultural fungicide Boscalid.

Institut für Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße, Building 54, D-67663 Kaiserslautern, Germany.

* To whom correspondence should be addressed. E-mail: goossen{at}chemie.uni-kl.de

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The Catalytic Cross-Coupling of Unactivated Arenes.
D. R. Stuart and K. Fagnou (2007)
Science 316, 1172-1175
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Science. ISSN 0036-8075 (print), 1095-9203 (online)