Synthesis of 12-aminododecanoic acid
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United States of America Patent
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Jun 25, 1996
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N/A
app pub date -
Mar 15, 1995
filing date -
May 21, 1993
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Abstract
A process for producing 12-oxododecanoic acid oxime, a novel compound which can be used as a raw material in several industrial processes, is disclosed. The disclosed process relies on a renewable raw material, vernolic (cis-12,13-epoxy-cis-9-octadecenoic) acid. The process utilizes readily available chemical technology which does not involve the use of gaseous hydrocarbon or petrochemical-base feedstock. Hydrogenation of vernolic acid produces 12,13-epoxystearic acid, which can be oxidized with periodic acid to give 12-oxododecanoic acid, which can be reacted with hydroxylamine to yield 12-oxododecanoic acid oxime. A process for reducing the 12-oxododecanoic acid oxime to yield 12-aminododecanoic acid, the monomer for nylon-12, is also disclosed.
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