Photosensitized electron transfer catalysis of the Mukaiyama aldol reaction by monocationic N21,N22-bridged porphyrins

Diacetyl as a “traceless” visible light photosensitizer in metal-free cross-dehydrogenative coupling reactions

“…19 Based on these studies, we hypothesized that triplet state ketones could substitute peroxides/persulfates in other carbon-centered radical generation processes, such as hydrogen atom transfer. Indeed, ketones have been used in some hydrogen atom transfer processes;20 however, they were rarely applied in CDC reactions.…”

Photocatalysis for the Formation of the C−C Bond

“…The process showed an induction period before the formation of the products, but did not proceed in the dark and thus was considered a photocatalytic reaction. 132…”

“…Coupling of the resulting α-silyloxyalkyl radicals with those resulting from the acetal led to a photoinduced Mukayama reaction (aldehyde or ketone and a silylenol ether giving the silylated β-hydroxycarbonyl). The process showed an induction period before the formation of the products, but did not proceed in the dark and thus was considered a photocatalytic reaction …”