Reusable Nitrogen-Doped Carbon-Encapsulated Cobalt Catalyst for Efficient Stepwise Oxidation of Acetal-Protected 5-Hydroxy-Methylfurfural to Furan-2,5-Dicarboxylic Acid.
We report a ZIF-67-derived N-doped carbon-encapsulated cobalt catalyst (Co@N-C) for the efficient, reusable, and noble metal-free aerobic oxidation of concentrated aqueous 5-hydroxymethylfurfural (HMF) derivatives in a stepwise fashion to furan-2,5-dicarboxylic acid (FDCA). Using acetal-protected HMF with propane-1,3-d...