Mechanism of the hydrogenolysis of ethers over silica-supported rhodium catalyst modified with rhenium oxide

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Abstract

The Rh-ReOx/SiO2 (Re/Rh = 0.5) exhibited high activity in the hydrogenolysis of ethers with an OH group. The CO bond neighboring CH2OH group was selectively dissociated: The hydrogenolysis of tetrahydro-5-methyl-2-furfuryl alcohol and 2-isopropoxyethannol gave 1,5-hexanediol and ethanol + isopropanol, respectively. This tendency suggests the regioselective CO dissociation mechanism via anion intermediate formed by the attack of hydride and the subsequent protonation of the anion.

Original languageEnglish
Pages (from-to)221-229
Number of pages9
JournalJournal of Catalysis
Volume280
Issue number2
DOIs
Publication statusPublished - 2011 Jun 13

Keywords

  • Ether
  • Hydride
  • Hydrogenolysis
  • Re
  • Regioselectivity
  • Rh

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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