Visible-Light-Induced Domino Cyclization to Access
Pyri-do[2,3-d]pyrimidine-2,4-diones via a Radical-Polar Crossover
Reaction
Abstract
Catalytic and green strategies for the synthesis of privileged scaffolds
are synthetically appealing. We now reported a radical-polar crossover
(RPC)-enabled three-component cyclization of bromodifluoroalkyls with
enaminones and 6-aminouraciles via a visible-light-induced dom-ino
cyclization. The reaction exhibited a broad substrate scope
(> 40 examples) including complex molecules, which
highlighted the utility of this strategy for the construction of a
library of bioactive analogs.