One-step synthesis
of β-carboxyl ketones from α,β-unsaturated
ketones using CO2 as a feedstock by photoelectro-synergetic
catalysis is reported herein. In this ambient system, silica nanowires
(SiNWs) electrode not only acts as the working electrode but also
harvests extra light energy to promote the reaction. Following a possible
two-step single-electron-transfer process, various substrates exhibit
good efficiency with up to 98% product yield, and the method shows
wide functional group tolerance.