Aerobic Oxidation of Alcohols with Gold Nanoparticles Supported on Cs₂CO₃

Significance

NaAuCl₄ catalyzed the aerobic oxidation of alcohols in the presence of Cs₂CO₃ at room temperature to afford the corresponding aldehydes and ketones in up to >99% yield (17 examples). In the aerobic oxidation of benzyl alcohol, the catalyst was recovered by simple filtration and reused three times without loss of catalytic activity (1^st reuse: >99%, 2^nd reuse: 98%, 3^rd reuse: 98%).