title: [3+2] cycloadditions of aryl cyclopropyl ketones by visible light photocatalysis.
abstract: We report a new method for the formal [3+2] reaction of aryl cyclopropyl ketones with olefins to generate highly substituted cyclopentane ring systems. The key initiation step in this process is the one-electron reduction of the ketone to the corresponding radical anion, which is accomplished using a photocatalytic system comprising Ru(bpy)(3)(2+), La(OTf)(3), and TMEDA.
authors.affiliation: Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States.
authors.forename: Zhan
authors.initials: Z
authors.lastname: Lu
authors.forename: Meihua
authors.initials: M
authors.lastname: Shen
authors.forename: Tehshik P
authors.initials: TP
authors.lastname: Yoon
mesh_terms: D000475:Alkenes / Q000737:chemistry*; D002384:Catalysis / Q000528:radiation effects; D005609:Free Radicals / Q000737:chemistry; D007659:Ketones / Q000737:chemistry*; D008027:Light; D055668:Photochemical Processes / Q000528:radiation effects*
chemical_list: D000475:Alkenes; D005609:Free Radicals; D007659:Ketones