Electrochemical synthesis of niacin and other N-heterocyclic compounds
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United States of America Patent
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Mar 26, 1991
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app pub date -
Jun 28, 1990
filing date -
Jun 28, 1990
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Abstract
An electrochemical oxidation of a pi-deficient N-heterocyclic precursor compound having an oxidizable organic group attached by a carbon-to-carbon linkage. This precursor compound is at least sparingly water soluble. The preferred electro-oxidation is conducted at an effective anode and in a medium which consists essentially of water, carboxylic acid, and the precursor compound. Preferred are electro-oxidations of substituted pyridine and quinoline bases and a particularly preferred aspect provides a convenient electrochemical synthesis of niacin from 3-methylpyridine.
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