Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 9, 2008
Patent Application Number
10589123
Date Filed
January 21, 2005
Patent Primary Examiner
Patent abstract
The invention relates to a process for the selective, economically viable preparation of methacrylic acid and methacrylic esters starting from acetone cyanohydrin, wherein, in a first step, 2-hydroxy-2-methylpropionic acid is prepared by reacting acetone cyanohydrin with sulphuric acid in the presence of water and a suitable polar solvent and is isolated and methacrylic acid is subsequently prepared by β-elimination of water starting from 2-hydroxy-2-methylpropionic acid.
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