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Singsardar, Mukta; Mondal, Susmita; Laru, Sudip; Hajra, Alakananda
Organic letters, 07/2019, Letnik: 21, Številka: 14Journal Article
A mild and efficient method for the direct difluoromethylenephosphonation of imidazopyridines has been developed using rose bengal (RB) as a photoredox catalyst. Bis(pinacolato)diboron (B2pin2) is found to be a crucial additive in the present reaction. The present methodology is also applicable to other heterocycles like imidazo2,1-bthiazole, benzodimidazo-2,1-bthiazole, and indole. The reaction possibly proceeds through a single electron transfer (SET) process.
