Highly selective formation of imines catalyzed by silver nanoparticles supported on alumina

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The oxidative dehydrogenation of alcohols to aldehydes catalyzed by Ag nanoparticles supported on Al2O3 was studied. The catalyst promoted the direct formation of imines by tandem oxidative dehydrogenation and condensation of alcohols and amines. The reactions were performed under mild conditions and afforded the imines in high yield (up to 99%) without any byproducts other than H2O. The highest activity was obtained over 5 wt% Ag/Al2O3 in toluene with air as oxidant. The reactions were also performed under oxidant-free conditions where the reaction was driven to the product side by the production of H-2 in the gas phase. The use of an efficient and selective Ag catalyst for the oxidative dehydrogenation of alcohol in the presence of amines gives a new green reaction protocol for imine synthesis. (C) 2014, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Original languageEnglish
JournalChinese Journal of Catalysis
Volume35
Issue number5
Pages (from-to)670-676
ISSN0253-9837
DOIs
Publication statusPublished - 2014

Bibliographical note

Journal title in english: Chinese Journal of Catalysis

Keywords

  • Heterogeneous catalysis
  • Silver nanoparticle
  • Oxidative dehydrogenation
  • Alcohol
  • Aldehyde
  • Imine
  • MOLECULAR-OXYGEN
  • AG CATALYSTS
  • ALCOHOLS
  • AMINES
  • DEHYDROGENATION
  • OXIDANT
  • OXIDATION
  • RUTHENIUM
  • CLUSTER

Cite this