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Keywords:

  • chemoselectivity;
  • gold;
  • heterogeneous catalysis;
  • nanoporous material;
  • oxidation
Thumbnail image of graphical abstract

Holey gold: Highly selective aerobic oxidation of methanol over alkylamines was achieved with a reusable nanoporous gold (AuNPore) catalyst that was fabricated from a Au–Ag alloy (see figure). This excellent chemoselectivity enabled direct N-formylation of alkylamines from a mixture of methanol and amines. The remarkable catalytic activity was attributed to the synergistic effect between gold and the residual silver remaining in the AuNPore.