期刊
CHEMSUSCHEM
卷 9, 期 13, 页码 1680-1688出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201600295
关键词
alcohols; biomass; heterogeneous catalysis; rhodium; supported catalysts
资金
- Japan Science and Technology Agency
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.
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