C–H arylation of unactivated arenes with aryl halides catalyzed by cobalt porphyrin
CT To, TL Chan, BZ Li, YY Hui, TSZY Kwok, SY Lam…
Index: To, Ching Tat; Chan, Tek Long; Li, Bao Zhu; Hui, Ying Ying; Kwok, Tsz Yiu; Lam, Suet Yu; Chan, Kin Shing Tetrahedron Letters, 2011 , vol. 52, # 9 p. 1023 - 1026
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Citation Number: 29
Abstract
A general procedure for cobalt-catalyzed direct C–H arylation of unactivated arenes has been discovered. This method employs aryl halides as the direct coupling partners with arenes without using any Grignard-type reagents. This catalysis opens a new methodology for the preparation of symmetrical as well as unsymmetrical biaryls in a user-friendly approach.
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