Synthesis of 2-Butanol by Selective Hydrogenolysis of 1,4-Anhydroerythritol over Molybdenum Oxide-Modified Rhodium-Supported Silica

Takahiro Arai, Masazumi Tamura, Yoshinao Nakagawa, Keiichi Tomishige

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Rh-MoOx/SiO2 (Mo/Rh=0.13) is an effective catalyst for the hydrogenolysis of 1,4-anhydroerythritol (1,4-AHERY) and provides 2-BuOH in high yield of 51 %. This is the first report of the production of 2-BuOH from 1,4-AHERY by hydrogenolysis. 1,4-AHERY was more suitable as a starting material than erythritol because the 2-BuOH yield from erythritol was low (34 %). Based on the kinetics and comparison of reactivities of the related compounds using Rh-MoOx/SiO2 and Rh/SiO2 catalysts, the modification of Rh/SiO2 with MoOx leads to the high activity and high selectivity to 2-BuOH because of the generation of reactive hydride species and the strong adsorption of 1,4-AHERY on MoOx species. The reaction proceeds by main two routes, (I) the combination of single C−O hydrogenolysis with the desorption of intermediates, a usual route in hydrogenolysis, and (II) multiple C−O hydrogenolysis without the desorption of intermediates from the active site, and the reaction mechanism for Route (II) is proposed.

Original languageEnglish
Pages (from-to)1680-1688
Number of pages9
JournalChemSusChem
Volume9
Issue number13
DOIs
Publication statusPublished - 2016 Jul 7

Keywords

  • alcohols
  • biomass
  • heterogeneous catalysis
  • rhodium
  • supported catalysts

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

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