Patent ID: 9278946
Filing Date: 2016-03-08
CPC Classification: C07D

Claim Text:
1. A method for preparing 5-(hydroxymethyl)furfural (HMF) comprising reacting a saccharide in the presence of an aryl- or heteroaryl-boronic acid, wherein the boronic acid is of the following formula (I): wherein, in formula (I), each of X, Y and Z are independently C, N, O, or S, or when at least one of Y, X, or Z is N, O or S, the ring comprising Y, X and Z may be a 5 or 6 membered ring; R R R R R or wherein independently each of R R is selected from H, and C R the reaction is performed in the presence of a solvent, wherein the solvent is an ionic liquid; wherein the reaction is carried out in an inert nitrogen atmosphere; and wherein the reaction is performed at a temperature of 70 to 140° C.