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Visible-Light-Mediated Hydroacylation of Azobenzenes with α‑Keto Acids

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journal contribution
posted on 13.10.2020, 20:30 by Jingya Yang, Menghui Song, Hongyan Zhou, Ganggang Wang, Ben Ma, Yuanyuan Qi, Congde Huo
A visible-light-mediated protocol for the hydroacylation of azobenzenes with α-keto acids has been developed. In the absence of any catalyst or additive, decarboxylative hydroacylation proceeded smoothly under visible-light irradiation at room temperature. A wide range of azobenzenes and α-keto acids were well-tolerated and afforded hydroacylation products in high to excellent yields. Preliminary investigations indicated that photoactive azobenzenes absorb visible light to enable the transformation.