Oxidative alkenylation of N,N-disubstituted benzamides with alkenes accompanied by regioselective C–H bond cleavage proceeds efficiently in the presence of a Ru/Ag catalyst system together with a copper oxidant. The procedure is also applicable to phenylazoles.
Combining Rhodium and Photoredox Catalysis for CH Functionalizations of Arenes: Oxidative Heck Reactions with Visible Light
作者:David C. Fabry、Jochen Zoller、Sadiya Raja、Magnus Rueping
DOI:10.1002/anie.201400560
日期:2014.9.15
Direct, oxidative metal‐catalyzed CH functionalizations of arenes are important in synthetic organic chemistry. Often, (over‐)stoichoimetric amounts of organic or inorganic oxidants have to be used in these reactions. The combination of rhodium and photoredox catalysis with visible light allows the directCH olefination of arenes. Small amounts (1 mol %) of a photoredoxcatalyst resulted in the efficient