Title:
【発明の名称】光学活性アミノ酸アミドのラセミ化方法
Document Type and Number:
Japanese Patent JP2941444
Kind Code:
B2
Abstract:
Process for the racemization of an optically active amino acid amide by reacting the amino acid amide with a carboxylic acid in the presence of a solvent, of water and of 0.5-4 equivalents of an aldehyde, calculated relative to the quantity of amino acid amide. Instead of an amino acid amide, the Schiff base of an amino acid amide and an aldehyde can also be used, in which case no extra aldehyde has to be added and the required quantity of water amounts to at least 1 equivalent relative to the quantity of Schiff base. This process gives fast racemization and a high yield of salt of the racemized amino acid amide and the carboxylic acid.
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| JP3847881 | RACEMIZATION OF OPTICALLY ACTIVE AMINE |
Inventors:
BIRUHERUMUSU FUUBERUTOSU YOZEFU BESUTEN
Application Number:
JP2213891A
Publication Date:
August 25, 1999
Filing Date:
February 15, 1991
Export Citation:
Assignee:
DEE ESU EMU NV
International Classes:
C07B55/00; C07C23/20; C07C231/16; C07C231/20; C07C237/04; C07C237/12; C07C237/20; C07C319/20; C07C319/28; C07C323/59; C07C323/60; (IPC1-7): C07C231/16; C07B55/00; C07C237/12; C07C237/20; C07C319/20; C07C323/59
Domestic Patent References:
| JP57123150A | ||||
| JP61238770A |
Attorney, Agent or Firm:
Toshiomi Yamazaki (1 person outside)