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公开(公告)号：US5434307A
公开(公告)日：1995-07-18
申请号：US65333
申请日：1993-05-21
IPC分类号： C07C249/04 , C07C249/08 , C07C251/38 , C07C251/32
CPC分类号： C07C251/38 , C07C249/04 , C07C249/08
摘要： 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.
摘要翻译： 公开了一种可在几种工业方法中用作原料的新型化合物12-氧代十二烷酸肟的制备方法。 所公开的方法依赖于可再生原料，季戊烯（顺式-12,13-环氧 - 顺-9-十八烯酸）酸。 该方法利用易于获得的不涉及使用气态烃或石油化学原料的化学技术。 戊二酸的氢化产生12,13-环氧硬脂酸，其可以用高碘酸氧化得到12-氧代十二烷酸，其可以与羟胺反应得到12-氧代十二烷酸肟。 还公开了用于还原12-氧代十二烷酸肟以产生12-氨基十二烷酸的方法，尼龙-12的单体。
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公开(公告)号：US5530148A
公开(公告)日：1996-06-25
申请号：US404668
申请日：1995-03-15
IPC分类号： C07C249/04 , C07C249/08 , C07C251/38 , C07C99/00
CPC分类号： C07C251/38 , C07C249/04 , C07C249/08
摘要： 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.
摘要翻译： 公开了一种可在几种工业方法中用作原料的新型化合物12-氧代十二烷酸肟的制备方法。 所公开的方法依赖于可再生原料，季戊烯（顺式-12,13-环氧 - 顺-9-十八烯酸）酸。 该方法利用易于获得的不涉及使用气态烃或石油化学原料的化学技术。 戊二酸的氢化产生12,13-环氧硬脂酸，其可以用高碘酸氧化得到12-氧代十二烷酸，其可以与羟胺反应得到12-氧代十二烷酸肟。 还公开了用于还原12-氧代十二烷酸肟以产生12-氨基十二烷酸的方法，尼龙-12的单体。
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公开(公告)号：US5498733A
公开(公告)日：1996-03-12
申请号：US93029
申请日：1993-07-19
IPC分类号： C07C227/04 , C07C229/08 , C11B1/00 , C11C1/02
CPC分类号： C07C227/04
摘要： Nylon-11 monomer, 11-aminoundecanoic acid, is synthesized from 12-oxododecanoic acid oxime in a three-step reaction sequence which involves a Beckmann rearrangement, Hofmann degradation and hydrolysis. The aldoxime acid is hydrolyzed in the presence of nickel acetate tetrahydrate to give 11-carbamoylundecanoic acid. This amide is then treated with a solution of sodium methoxide and bromine at 70.degree.-80.degree. C. to give 11-(methoxycarbonylamino)undecanoic acid, which upon basic hydrolysis and subsequent neutralization, yields the 11-aminoundecanoic acid.
摘要翻译： 尼龙-11单体，11-氨基十一烷酸，由12-氧代十二烷酸肟合成的三步反应顺序涉及贝克曼重排，霍夫曼降解和水解。 醛肟酸在乙酸镍四水合物的存在下水解，得到11-氨基甲酰基十一烷酸。 然后用甲醇钠和溴的溶液在70-80℃处理该酰胺，得到11-（甲氧基羰基氨基）十一烷酸，其在碱性水解和随后的中和反应后得到11-氨基十一烷酸。
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