Process for the preparation of quinolinic acid
AssigneeAppleton Papers Inc.
InventorPonnampalam Mathiaparanam
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Abstract
A process is disclosed for the manufacture of quinolinic acid by oxidizing quinoline with ruthenium tetraoxide in the presence of hypochlorite solution in which a certain amount of base is added prior to the inception of the oxidation reaction. The disclosed process provides greatly improved yields of high purity quinolinic acid.
Claims14
A process for the preparation of quinolinic acid by oxidizing quinoline with ruthenium tetraoxide in the presence of hypochlorite solution and a base selected from the group consisting of sodium hydroxide and potassium hydroxide, wherein the molar ratio of total base to quinoline is at least 5:1.
A process for the preparation of quinolinic acid by oxidizing quinoline with ruthenium tetraoxide in the presence of hypochlorite solution, carbon tetrachloride and a base selected from the group consisting of sodium carbonate and potassium carbonate, wherein the molar ratio of total base to quinoline is at least 4:1.
Dependencies are inferred from the claim text.