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Synfacts 2010(9): 1059-1059  
DOI: 10.1055/s-0030-1257898
Metal-Mediated Synthesis
© Georg Thieme Verlag Stuttgart ˙ New York

Synthesis of ortho-Teraryls by Sequential Unsymmetrical Aryl Cross-Coupling

Contributor(s): Paul Knochel, Andreas J. Wagner
E. Motti, N. Della Ca’, S. Deledda, E. Fava, F. Panciroli, M. Catellani*
Università Di Parma, Italy
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Publication History

Publication Date:
23 August 2010 (online)

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Significance

Selectively substituted o-teraryls are accessible by a palladium/norbornene-catalyzed reaction of aryl iodides, aryl bromides, and arylboronic acids in an ordered sequence. The reason for the high selectivity is the presence of diethyl maleate coordinated to palladium as a ligand.