Process for the catalytic production of an analogue of methionine
AssigneesAdisseo France S.A.S., Centre National De La Recherche Scientifique, Ecole Centrale De Lille, Universite Claude Bernard Lyon 1
InventorsFélix Taulou, Didier Morvan, Virginie Belliere-Baca, Dorothée Laurenti
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Abstract
A method for preparing 2-hydroxy-4-methylthiobutyric acid (HMTBA) or 2-hydroxy-4-methylselenobutyric acid (HMSeBA) by catalytic conversion of 2-hydroxy-4-methylthiobutyronitrile or 2-hydroxy-4-methylselenobutyronitrile, respectively, where said conversion is carried out in the presence of water and at least one weak acid and one catalyst comprising at least one of alumina, titanium dioxide and zirconia.
Claims8
A method for preparing 2-hydroxy-4-methylthiobutyric acid (HMTBA) or 2-hydroxy-4-methylselenobutyric acid (HMSeBA) comprising catalytically converting of 2-hydroxy-4-methylthiobutyronitrile (HMTBN) or 2-hydroxy-4-methylselenobutyronitrile, respectively, wherein said catalytically converting is carried out in the presence of water and at least one weak acid and one catalyst comprising at least one of alumina, titanium dioxide and zirconia,
- wherein said weak acid is selected from formic acid, acetic acid, propionic acid, linear or branched butanoic acid, pentanoic acid, carbonic acid, glycolic acid, thioacetic acid, cyanoacetic acid, lactic acid, pyruvic acid and oxalic acid-,
- wherein said catalytically converting consist of converting hydroxy-4-methylthiobutyronitrile or 2-hydroxy-4-methylselenobutyronitrile into 2-hydroxy-4-methylthiobutyric acid or 2-hydroxy-4-methylselenobutyric acid, respectively, and
- wherein said conversion is carried out in a single step.
Dependencies are inferred from the claim text.