Palladium-catalyzed tandem N–H/C–H arylation: regioselective synthesis of N-heterocycle-fused phenanthridines as versatile blue-emitting luminophores?

Organic & Biomolecular Chemistry Pub Date: 2013-09-30 DOI: 10.1039/C3OB41760C

Abstract

A general and highly regioselective synthetic protocol for structurally diverse N-heteroaryl-fused phenanthridines has been developed. Varieties of fluorescence molecules comprising imidazole-fused, benzoimidazole-fused, indole-fused and pyrrole-fused phenanthridines were obtained by this modular approach, some of which exhibit excellent blue-emitting performance, high quantum yields, long fluorescence lifetimes, interesting electrochemical properties, and thermal stabilities.

Graphical abstract: Palladium-catalyzed tandem N–H/C–H arylation: regioselective synthesis of N-heterocycle-fused phenanthridines as versatile blue-emitting luminophores
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