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Method for selectively preparing evoglucosenone (LGO) and other anhydrosugars from biomass in polar aprotic solvents

United States Patent

June 28, 2016
View the Complete Patent at the US Patent & Trademark Office
A method to produce 5-hydroxymethylfurfural (HMF) is described in which a reactant including cellulose, lignocellulose, or a combination thereof, in a reaction mixture of a polar, aprotic solvent and an acid is reacted for a time, at a temperature, and at a hydrogen ion concentration wherein at least a portion of the cellulose or lignocellulose present in the reactant is converted to HMF. The reaction mixture is initially substantially devoid of water. As the reaction proceeds, dehydration of intermediates causes the water concentration in the reaction mixture to rise to no more than about 2.0 wt % water.
Huber; George W. (Middleton, WI), Cao; Fei (Nanjing, CN), Dumesic; James A. (Verona, WI), Schwartz; Thomas J. (Madison, WI)
Wisconsin Alumni Research Foundation (Madison, WI)
14/ 588,178
December 31, 2014
FEDERAL FUNDING STATEMENT This invention was made with government support under DE-FC02-07EF64494 awarded by the US Department of Energy. The government has certain rights in the invention.