title: Visible-light photoredox catalysis: dehalogenation of vicinal dibromo-, α-halo-, and α,α-dibromocarbonyl compounds.
abstract: vic-Dibromo-, α-halo-, or α,α-dibromocarbonyl compounds can be efficiently dehalogenated using catalytic tris(2,2'-bipyridyl)ruthenium dichloride (Ru(bpy)(3)Cl(2)) in combination with 1,5-dimethoxynaphthalene (DMN) and ascorbate as sacrificial electron donor. For this process, a visible light promoted photocatalytic cycle is proposed that involves the reduction of carbon halogen bonds via free radical intermediates.
authors.affiliation: Institut für Organische Chemie, Universität Regensburg Universitätsstrasse 31, 93053 Regensburg, Germany.
authors.forename: Tapan
authors.initials: T
authors.lastname: Maji
authors.forename: Ananta
authors.initials: A
authors.lastname: Karmakar
authors.forename: Oliver
authors.initials: O
authors.lastname: Reiser