Light-Mediated Heterogeneous Cross Dehydrogenative Coupling Reactions: Metal Oxides as Efficient, Recyclable, Photoredox Catalysts in CC Bond-Forming Reactions
作者:Magnus Rueping、Jochen Zoller、David C. Fabry、Konstantin Poscharny、René M. Koenigs、Thomas E. Weirich、Joachim Mayer
DOI:10.1002/chem.201103242
日期:2012.3.19
Let there be light: A heterogeneous photocatalytic system based on easily recyclable TiO2 or ZnO allows cross dehydrogenative coupling reactions of tertiary amines. The newly developed protocols have successfully been applied to various CC and CP bond‐formingreactions to provide nitro amines as well as amino ketones, nitriles and phosphonates.
An aerobic photocatalytic oxidative cyanation of tertiary amines providing valuable α-aminonitriles in good to excellent yields was developed. Mild reaction conditions and low catalyst loading are attractive features of the protocol.
the conversion of visiblelight to electrical energy and C–Hactivation by the synergistic catalytic effect of visible-light and photoelectric current. An atom-economical and environment-friendly self-biasing interfacial photo-electrocatalytic method for cascade C–Hactivation/cyclization is provided to construct N-containing fused ring compounds using an m-BiVO4 film as a photoanode. There are obvious