The palladium-catalyzed cyclization of 2-(2-bromoaryl)-3-arylindoles provides a new versatile approach to dibenzo[a,c]carbazoles. The reaction tolerates a variety of useful substituents including chloro, nitro, ether, cyano, keto, and ester groups.
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Dibenzo[a,c]carbazoles from 2-(2-bromoaryl)-3-arylindoles via a palladium-catalyzed intramolecular C–H functionalization/C–C bond formation process
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Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza, Università di Roma, P.le A. Moro 5, 00185 Rome, Italy
E-mail: antonella.goggiamani@uniroma1.it ;
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E-mail: antonella.goggiamani@uniroma1.it ;
Fax: +39 (06) 4991 2780 ;
Tel: +39 (06) 4991 2795
Org. Biomol. Chem., 2012,10, 9142-9147
DOI: 10.1039/C2OB26741A
Received 05 Sep 2012, Accepted 27 Sep 2012
First published online 01 Oct 2012
Organic & Biomolecular Chemistry
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