03587nas a2200181 4500008004100000245015100041210006900192260000800261300001600269490000600285520287600291100001603167700001803183700002903201700002603230700002003256856012903276 2024 eng d00aSynergistic combination of ZnCl2/Cu-BTC MOF for the photocatalytic oxidative deamination of benzylamines using CO2 under visible-light irradiation0 aSynergistic combination of ZnCl2CuBTC MOF for the photocatalytic cJUL a2095–21010 v23 a

This paper demonstrates the first CO2-mediated oxidative deamination of benzylamines to benzaldehydes using a combination of ZnCl2 and Cu-BTC MOF as photocatalysts in a carbon tetrachloride solvent under visible-light irradiation. Interestingly, the synergistic combination of ZnCl2 and Cu-BTC afforded the targeted oxidation of benzylamine to benzaldehyde, wherein CO2 acted as an oxidant. The individual components yielded the corresponding imine as the main product, resulting from the oxidative coupling of the benzylamine. DFT calculations and computational studies supported the proposed reaction pathways involving the formation of an intermediate imine from benzylamine via dehydrogenation followed by hydrolysis to produce benzaldehyde. This work, demonstrating the use of CO2 as an oxidant, may open up new avenues for CO2 utilization in chemical production by using sustainable light energy.

1 aKumar, Amod1 aBhatt, Sakshi1 aSamal, Pragnya, Paramita1 aKrishnamurty, Sailaja1 aJain, Suman, L. uhttps://library.ncl.res.in/content/synergistic-combination-zncl2cu-btc-mof-photocatalytic-oxidative-deamination-benzylamines