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US 5,182,400 AGranted
Process for the preparation of esters of 5-alkylpyridine-2,3-dicarboxylic acid
AssigneeHoechst Aktiengesellschaft
InventorsJurgen Weber, Peter Lappe, Helmut Springer
Life of this patent
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Abstract
Process for the preparation of 5-alkylpyridine-2,3-dicarboxylic esters by reaction of 2-oxosuccinic esters with 2-alkylacrolein oximes.
Claims15
A process for the preparation of esters of 5-alkylpyridine-2,3-dicarboxylic acid comprising reacting 2-oxosuccinic acid esters with 2-alkylacrolein oximes in the presence of at least one acid catalyst.
Dependencies are inferred from the claim text.