Title

Visible Light-Driven CO<sub>2</sub> Insertion on Phenylacetylene to Phenylpropiolic Acid Using Soft-Oxometalates.

Authors

Lodh, Joyeeta; Roy, Soumyajit

Abstract

The visible light-driven CO2 insertion from phenylacetylene to acetophenone using soft-oxometalates (SOMs) as a photocatalyst is an important step in the pursuit of C–H activation. We have demonstrated a synergistic combination of Cu-based SOMs and Cs2CO3 at ambient pressure and temperature to lower the activation energy barrier for CO2 insertion. The water in the medium acts as a source of proton and the reaction is driven by Cu(II)/Cu(I) couple. The reaction yields a good amount of phenylpropiolic acid under mild condition. We further believe this work could open up a new avenue for direct CO2 insertion under mild condition.

Subjects

ETHYNYL benzene; PHOTOCATALYSTS; ACTIVATION energy; ACETOPHENONE; METALATION; PHENYLPROPIONATES

Publication

Journal of Molecular & Engineering Materials, 2021, Vol 9, Issue 4, p1

ISSN

2251-2373

Publication type

Academic Journal

DOI

10.1142/S2251237321400049