Cp<sub>2</sub>TiCl<sub>2</sub>-Catalyzed Photoredox Allylation of Aldehydes with Visible Light
作者:Andrea Gualandi、Francesco Calogero、Martino Mazzarini、Simone Guazzi、Andrea Fermi、Giacomo Bergamini、Pier Giorgio Cozzi
DOI:10.1021/acscatal.0c00348
日期:2020.3.20
A Barbier-type Cp2TiCl2-mediated (10 mol %) photoredox allylation of aldehydes under irradiation with visible light (blue light-emitting diodes (LEDs), 450 nm) and in the presence of an organic dye (3DPAFIPN, 5 mol %) with allylbromides is described.
Carbanions α to (alkoxy)silyl or (amino)silyl groups act as nucleophilic α-hydroxy-alkylating agents for organic halides and epoxides via the metal catalyzed coupling reaction and the subsequent oxidative cleavage of the carbon-silicon bond.