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1.
公开(公告)号:US06455730B1
公开(公告)日:2002-09-24
申请号:US09632419
申请日:2000-08-04
IPC分类号: C07C5108
摘要: This invention relates to a process for preparing dicarboxylic acid monoesters from cyanocarboxylic acid esters. More particularly, using the nitrilase from Acidovorax facilis 72W (ATCC 55745) in various forms as an enzyme catalyst, an aliphatic or aromatic cyanocarboxylic acid ester is converted to the corresponding dicarboxylic acid monoester with high chemoselectivity at 100% conversion. An embodiment of the invention also provides a process for obtaining high chemoselectively and high regioselectivity.
摘要翻译: 本发明涉及由氰基羧酸酯制备二羧酸单酯的方法。 更具体地,使用来自Acidovorax facilis 72W(ATCC 55745)的腈水解酶以各种形式作为酶催化剂,将脂族或芳族氰基羧酸酯在100%转化率下转化为具有高化学选择性的相应的二羧酸单酯。 本发明的实施方案还提供了获得高化学选择性和高区域选择性的方法。
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公开(公告)号:US06169201A
公开(公告)日:2001-01-02
申请号:US09311532
申请日:1999-05-13
申请人: Matthias Beller , Markus Eckert , Wahed Moradi
发明人: Matthias Beller , Markus Eckert , Wahed Moradi
IPC分类号: C07C5108
CPC分类号: C07C231/06 , C07C2601/14 , C07C233/47 , C07C233/50 , C07C233/51
摘要: Process for the preparation of N-acetyl protected amino acids of Formula I by amido carbonylation utilizing carbon monoxide, nitrile, and an aldehyde in the presence of a metal catalyst.
摘要翻译: 在金属催化剂存在下,使用一氧化碳,腈和醛在酰胺基羰基化制备式I的N-乙酰基保护的氨基酸的方法。
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