Visible light catalyzed reaction of α-bromochalcones with chalcones: direct access to the urundeuvine scaffold

The α-keto vinyl radicals generated from α-bromochalcones under visible light photoredox catalyzed conditions were trapped by chalcones.

Photo-induced tandem cyclization of 3-iodoflavones with electron rich five-membered heteroarenes

Vinyl radicals were generated from 3-iodoflavones and occurred tandem cyclizations to synthesis a broad variety of novel polycyclic xanthone frameworks in good yields under mild and environmentally reaction conditions.

Tandem cyclisation of vinyl radicals: a sustainable approach to indolines utilizing visible-light photoredox catalysis

2,3-Disubstituted indoles can be efficiently synthesised at room temperature from readily available benzylated ortho-amino-α-bromocinnamates by a photoredox catalysed tandem radical 1,6-H-translocation-cyclisation strategy, advancing previous protocols that called for overstoichiometric use of Bu3SnH/AIBN and reflux temperatures.