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We have developed the N-heterocyclic carbene/organic photoredox-cocatalyzed acyl azolation of styrenes using acyl azoles. The cooperative action of organic photoredox catalysis and NHC catalysis enabl...

The organophotoredox-catalyzed postfunctionalization of polymers with a redox-active moiety using trialkyl phosphite nucleophiles afforded the corresponding phosphonate-containing polymers via the ra...

Alkylated arenes are valuable scaffolds in pharmaceuticals, agrochemicals, and materials science. In this work, Ohmiya, Nagao, and co-workers report a radical para-selective alkylation of aroyl chlorides via a unique tele-substitution mechanism mediated by aroyl trialkylphosphonium intermediates. This metal-free strategy proceeds under mild conditions and enables functionalization without the pre-installation of directing groups onto the arenes.

We demonstrate the para-selective C(sp2)–H alkylation of aroyl chlorides with alkyltrifluoroborates and trialkylphosphine through an organic photoredox-catalyzed radical tele-substitution. The reaction proceeds through the para-selective addition of alkyl…