Photocatalytic Partial Oxidation of 5-Hydroxymethylfurfural(HMF)to 2,5-Diformylfuran(DFF)Over a Covalent Triazine Framework in Water

摘要

Conversion of biomass into high value products via environmentally benign processes remains a challenging task for chemists.Photocatalytic partial oxidation of the biochemical 5-hydroxymethylfurfural(HMF)to 2,5-diformylfuran(DFF)has attracted much attention as DFF is known to be a pivotal precursor in the biochemical industry.Previously,this reaction has been catalyzed with transition metal based catalytic systems in organic solvents.Herein,we report the use of a covalent triazine framework(CTF)as a highly stable and porous organic photoactive polymer for the photocatalytic partial oxidation of HMF to DFF in water,using molecular oxygen as a green oxidant.The photocatalyst showed high efficiency in affording DFF as the target product with good reusability.