Direct conversion and NMR observation of cellulose to glucose and 5-hydroxymethylfurfural (HMF) catalyzed by the acidic ionic liquids

▶ The acidic ionic liquid [C4SO3Hmim]HSO4 is an effecient catalyst for the hydrolysis of cellulose. ▶ In-situ13C NMR is an effective characterization technique to study the cellulose hydrolysis process. ▶ In the reaction, short reaction time favors production of glucose and longer reaction time facilitates formation of HMF.