Dual Visible Light Photoredox and Gold-Catalyzed Arylative Ring Expansion
نویسندگان
چکیده
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.
منابع مشابه
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متن کاملDual gold and photoredox catalysis: visible light-mediated intermolecular atom transfer thiosulfonylation of alkenes† †Electronic supplementary information (ESI) available. CCDC 1494115 for 3n and 1494114 for 3s. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c6sc05093j Click here for additional data file. Click here for additional data file.
Regioselective difunctionalization of alkenes has attracted significant attention from synthetic chemists and has the advantage of introducing diverse functional groups into vicinal carbons of common alkene moieties in a single operation. Herein, we report an unprecedented intermolecular atom transfer thiosulfonylation reaction of alkenes by combining gold catalysis and visible-light photoredox...
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