Electron Transfer Mediated Photoreductions of α,β-Unsaturated Ketones

Article abstract of DOI:10.1016/S0040-4039(00)97173-9

The photoreduction of α,β-unsaturated ketones with triethylamine-alcohol solutions yields dihydro- and pinacol products.With 2 to 3 M triethylamine in methanol, the photoreduction occurs with good efficiency.Protonation by methanol of the semi-enone intermediate occurs at the β-carbon to yield the dihydro product.