4.5 Article

Pd/C and NaBH4 in Basic Aqueous Alcohol: An Efficient System for an Environmentally Benign Oxidation of Alcohols

Journal

SYNTHESIS-STUTTGART
Volume -, Issue 3, Pages 477-485

Publisher

GEORG THIEME VERLAG KG
DOI: 10.1055/s-0029-1217115

Keywords

alcohols; oxidation; Pd/C heterogeneous catalysis; sodium borohydride; carbonyl compounds; carboxylic acids

Funding

  1. Korea Science and Engineering Foundation (KOSEF) [M20702010001-09N0201-00110]
  2. Ministry of Science & Technology (MOST), Republic of Korea
  3. Korean Ministry of Education through BK21 project
  4. National Research Foundation of Korea [과C6A2605, 2007-2000331] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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We report the oxidation of a wide range of alcohols using an environmentally benign and economical process. The use of Pd/C heterogeneous catalysts along with NaBH4 in aqueous ethanol or methanol and either K2CO3 or KOH as base at room temperature under molecular oxygen or air give the corresponding oxidation products. This protocol is versatile since it is capable of oxidizing alcohols to its desired carbonyl or carboxyl counterpart. Room temperature reaction in aqueous system and recyclability of the catalyst are among the advantages of this manipulation. These advantages make the process safe and cheaper rendering it favorable from both economic and environmental viewpoints.

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