… of Quinolines, 2-Quinolones, Phenanthridines, and 6 (5 H)-Phenanthridinones via Palladium [0]-Mediated Ullmann Cross-Coupling of 1-Bromo-2-nitroarenes with β- …

MG Banwell, DW Lupton, X Ma, J Renner…

Index: Banwell, Martin G.; Lupton, David W.; Ma, Xinghua; Renner, Jens; Sydnes, Magne O. Organic Letters, 2004 , vol. 6, # 16 p. 2741 - 2744

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Citation Number: 95

Abstract

Palladium [0]-mediated Ullmann cross-coupling of 1-bromo-2-nitrobenzene (1 R= H) and its derivatives with a range of β-halo-enals,-enones, or-esters readily affords the corresponding β-aryl derivatives, which are converted into the corresponding quinolines, 2-quinolones, phenanthridines, or 6 (5 H)-phenanthridinones on reaction with dihydrogen in the presence of Pd on C or with TiCl3 in aqueous acetone.