Visible-Light-Induced Radical Hydroaroylation of Vinyl Boronic Ester with Aroyl Chlorides to Access β-Boryl Ketones.

A visible-light-induced radical hydroaroylation of vinyl boronic ester with aroyl chlorides has been developed, yielding a variety of β-boryl ketones in moderate to good yields with broad functional group tolerance. This metal-free transformation offers a convenient and practical route to access valuable β-boryl ketones from readily available aroyl chlorides and vinyl boronic ester.