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US 7,256,315 B2Granted
Process for the production of 3-methylthiopropanal
AssigneeAdisseo Ireland Limited
InventorPatrick Rey
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Abstract
Process for the Production of 3-methylthiopropanal. A process for the production of 3-methylthiopropanal which reacting reaction medium comprising methyl mercaptan and acrolein in the presence of a catalyst comprising an organic base characterised in that the organic base is a N-alkyl morpholine compound.
Claims33
A process for the production of 3-methylthiopropanal (MTPA), comprising:
- reacting a reaction medium comprising methylmercaptan and acrolein in the presence of a catalyst comprising an acid and an organic base, wherein the organic base is a N-alkyl-morpholine.
A process for the production of 2-hydroxy-4-(methylthio)butanenitrile, comprising:
- (a) a first step of reacting a reaction medium comprising methylmercaptan and acrolein in the presence of a catalyst comprising an acid and an organic base to produce a product stream comprising 3-methylthiopropanal and said catalyst, wherein the organic base is a N-alkyl-morpholine;
- and
- (b) a second step of reacting said product stream with hydrogen cyanide in the presence of a catlyst.
A process for the production of 2-hydroxy-4-(methylthio)butanenitrile, comprising:
- reacting a reaction medium comprising 3-methylthiopropanal (MTBA) and hydrogen cyanide in the presence of a catalyst comprising an organic base, wherein the organic base is a N-alkyl-morpholine.
Dependencies are inferred from the claim text.