title: Electron transfer photoredox catalysis: intramolecular radical addition to indoles and pyrroles.
abstract: The utilization of the photoredox catalyst, tris(2,2'-bipyridyl)ruthenium dichloride, and a household light bulb to effect radical cyclizations onto indoles and pyrroles at room temperature is reported. A reactive free radical intermediate is generated via the reduction of an activated C-Br bond by the single electron reductant, Ru(I), generated in a visible light induced photocatalytic cycle. This system represents an expansion of the application of photoredox catalysis in conventional free radical processes.
authors.affiliation: Department of Chemistry, Boston University, Boston, Massachusetts 02215, USA.
authors.forename: Joseph W
authors.initials: JW
authors.lastname: Tucker
authors.forename: Jagan M R
authors.initials: JM
authors.lastname: Narayanam
authors.forename: Scott W
authors.initials: SW
authors.lastname: Krabbe
authors.forename: Corey R J
authors.initials: CR
authors.lastname: Stephenson