Chemical transformation of lignocellulosic biomass into...

C - Chemistry – Metallurgy – 13 – K

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C13K 1/02 (2006.01) C07D 307/36 (2006.01) C07D 307/50 (2006.01) C07H 3/02 (2006.01)

Patent

CA 2726126

A method for converting a carbohydrate to a furan in a polar aprotic solvent in the presence of a chloride, bromide, or iodide salt or a mixture thereof and optionally in the presence of an acid catalyst, a metal halide catalyst and/or an ionic liquid (up to 40 wt%). The method can be employed in particular to produce furfural or 5- hydroxymethylfurfural.

L'invention porte sur un procédé de conversion d'un glucide en un furane dans un solvant aprotique polaire en présence d'un sel chlorure, bromure ou iodure ou d'un mélange de ceux-ci et, facultativement, en présence d'un catalyseur acide, d'un catalyseur halogénure métallique et/ou d'un liquide ionique (jusqu'à 40 % en poids). Le procédé peut être employé en particulier pour produire du furfural ou du 5-hydroxyméthylfurfural.

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