Dual visible light photoredox and gold-catalyzed arylative ring expansion.

ABSTRACT: A combination of visible light photocatalysis and gold catalysis is applied to a ring expansion-oxidative arylation reaction. The reaction provides an entry into functionalized cyclic ketones from the coupling reaction of alkenyl and allenyl cycloalkanols with aryl diazonium salts. A mechanism involving generation of an electrophilic gold(III)-aryl intermediate is proposed on the basis of mechanistic studies, including time-resolved FT-IR spectroscopy.

SUBMITTER: Shu XZ 

PROVIDER: S-EPMC4333587 | biostudies-literature | 2014 Apr

REPOSITORIES: biostudies-literature