Visible-Light-Induced Difunctionalization of Alkenyl Ketones with alpha-Carbonyl Alkyl Bromide: Concomitant Installation of C-C Bonds
JOURNAL OF ORGANIC CHEMISTRY(2022)
摘要
The visible-light-promoted difunctionalization of alkenyl ketones has been developed for easy access of various tetralones, cyclopropane, or alkenyl migration compounds. With fac-[Ir(ppy)3] as the photocatalyst, alkenyl ketones captured the alpha- carbonyl alkyl radical and evolved through intramolecular cyclization and the elimination of a proton to give the difunctionalized products. This strategy is characterized by good yields, mild reaction conditions, and outstanding functional group tolerance.
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