Photochemical Aldehyde-Olefin Coupling via In Situ Activation of α-Benzoyloxy Chlorides.
While ketyl radicals enable powerful umpolung C(sp3)-C(sp3) couplings, their generation from aliphatic aldehydes typically requires metal reductants or precious-metal catalysts. Herein, we report a practical photochemical protocol for one-pot aldehyde-olefin cross-coupling. This method leverages the in situ formation o...