A palladium-catalyzed multicomponentreaction (MCR) involving aryne, CO, and aniline is established for straightforward assembly of a phenanthridinone scaffold through C–H bond activation. Free combination with multiple kinds of readily available anilines and arynes is facilely achieved for phenanthridinone construction without prefunctionalization. Representative natural products were subsequently
Mishra, Sourabh; De, Subhadip; N Kakde, Badrinath, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 2013, vol. 52, # 8-9, p. 1093 - 1102
6-Phenanthridinones and their heterocyclic analogues were synthesized through a one-pot procedure based on consecutive Pd-catalyzed aryl-aryl and N-aryl coupling from iodoarenes ortho-substituted by electron-releasing substituents and amides of o-bromoarene- and heteroarenecarboxylic acids.
GLOVER S. A.; GOOSEN A., J. CHEM. SOC. PERKIN TRANS., PART 1, 1978, NO 6, 653-657