posted on 2017-06-09, 18:22authored byBastien Michelet, Christopher Deldaele, Sofia Kajouj, Cécile Moucheron, Gwilherm Evano
A broadly
applicable copper catalyst for photoredox transformations
of organic halides is reported. Upon visible light irradiation in
the presence of catalytic amounts of [(DPEphos)(bcp)Cu]PF6 and an amine, a range of unactivated aryl and alkyl halides were
shown to be smoothly activated through a rare Cu(I)/Cu(I)*/Cu(0) catalytic
cycle. This complex efficiently catalyzes a series of radical processes,
including reductions, cyclizations, and direct arylation of arenes.