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Rhodium-catalyzed intermolecular oxidative cross-coupling of (hetero)arenes with chalcogenophenes.

Organic letters (2013-02-28)
Vutukuri Prakash Reddy, Renhua Qiu, Takanori Iwasaki, Nobuaki Kambe
RESUMEN

A straightforward and efficient method for the rhodium-catalyzed intermolecular oxidative cross-coupling of arenes and heteroarenes with thio- and selenophene derivatives (chalcogenophenes) via double C-H bond cleavage has been developed by using Cu(OAc)2/AgSbF6 as an oxidant. The reaction is applicable to a wide range of (hetero)arenes carrying a directing group and chalcogenophenes to yield substituted biaryl heterocyclic derivatives and oligothiophene derivatives in moderate to high yields.

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Sigma-Aldrich
Rhodium, powder, 99.95% trace metals basis