Palladium-Catalyzed Dehydrogenative Direct Arylations of 1,2,3-Triazoles
作者:Lutz Ackermann、Rajkumar Jeyachandran、Harish K. Potukuchi、Petr Novák、Lea Büttner
DOI:10.1021/ol1005517
日期:2010.5.7
Palladium-catalyzedintramolecular dehydrogenative directarylations of 1,2,3-triazoles were accomplished under ambient pressure of air, which set the stage for a modular synthesis of annulated phenanthrenes through a reaction sequence comprising two distinct catalytic C−H bond functionalization reactions.
Dehydrogenative C-Harylations of 1,2,3-triazoles were accomplished with the aid of a reusable palladium catalyst in PEG. The widely applicable oxidative palladium catalysis enabled the synthesis of fully decorated 1,2,3-triazoles with a broad functional-group tolerance and ample substrate scope. The sustainability of the aerobic C-Harylation was reflected by the use of PEG as green reaction medium