Palladium-catalyzed coupling of polyfluorinated arenes with heteroarenes via C-F/C-H activation

Org Lett. 2013 Feb 15;15(4):940-3. doi: 10.1021/ol303567t. Epub 2013 Feb 7.

Abstract

The first palladium-catalyzed coupling of 2-pyridyl-polyfluoroarenes and benzoxazole, thiazole, benzothiazole, benzoimidazole, oxazole or oxadiazole via a concurrent C-F/C-H activation is described. Initial mechanistic studies showed that C-F activation of perfluoroarene is likely the rate-limiting step of the catalytic cycle. This protocol provides a useful and operationally simple process to functionalized polyfluoroarenes.