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US 2003/0144538 A1Published application
Method for producing alkoxy malonic acid dinitriles
AssigneeLonza Ltd.
InventorsJohannes Bartek, Rudolf Fuchs, Stefan Hildbrand
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Abstract
1 The invention relates to a method for producing alkoxy malonic acid dinitriles of general formula (I), wherein R1 means C1-6-alkyl or halogen-substituted C1-6-alkyl. The method is characterised in that the corresponding alkoxy malonic acid diamides of general formula (II), wherein R1 has the aforementioned meaning, are converted by means of a dehydrating agent. The invention also relates to the intermediate products of general formula (III), whereby said products are formed during dehydration.
Claims10
A process for preparing alkoxymalononitriles of the general formula
- 5
- where R1 is C1-6-alkyl or halogen-substituted C1-6-alkyl, characterized in that the appropriate alkoxymalonamides of the general formula
- 6
- where R1 is as defined above are reacted with a dehydrating agent.
1 more element
Dependencies are inferred from the claim text.