METHOD FOR CONVERTING LEVOGLUCOSENONE INTO 4-HYDROXYMETHYL BUTYROLACTONE AND 4-HYDROXYMETHYL BUTENOLIDE WITHOUT USING ANY ORGANIC SOLVENT AND CATALYST
PROCÉDÉ DE TRANSFORMATION DE LA LEVOGLUCOSENONE EN 4-HYDROXYMETHYL BUTYROLACTONE ET 4-HYDROXYMETHYL BUTENOLIDE EN ABSENCE DE SOLVANT ORGANIQUE ET DE CATALYSEUR