METHOD FOR PRODUCING 2-HYDROXY-4-METHYLTHIOBUTANOIC ACID

The present invention provides a process for producing 2-hydroxy-4-methylthiobutyric acid comprising the following steps (1) to (4); (1): hydrolyzing 2-hydroxy-4-methylthiobutyronitrile in the presence of sulfuric acid, (2): separating the reaction mixture obtained in the step (1) into an oil layer...

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Bibliographic Details
Main Authors HAGA, TORU, SHIOZAKI, TETSUYA
Format Patent
LanguageEnglish
French
German
Published 09.12.2009
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The present invention provides a process for producing 2-hydroxy-4-methylthiobutyric acid comprising the following steps (1) to (4); (1): hydrolyzing 2-hydroxy-4-methylthiobutyronitrile in the presence of sulfuric acid, (2): separating the reaction mixture obtained in the step (1) into an oil layer containing 2-hydroxy-4-methylthiobutyric acid and a water layer, (3): concentrating the oil layer obtained in the step (2), and (4): heating the concentrated product obtained in the step (3).
Bibliography:Application Number: EP20050780428