Title:
PROCESS FOR PRODUCING AMINO ACID AND DERIVATIVE THEREOF WITH OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY
Document Type and Number:
WIPO Patent Application WO/2006/054366
Kind Code:
A1
Abstract:
A method of synthesizing an optically active amino acid and a derivative thereof in a two-phase system consisting of a water-immiscible medium and an alkaline aqueous solution using as a phase-transfer catalyst an optically active quaternary ammonium salt having axial asymmetry. This method can comprise steps which are more inexpensive and have higher controllability than in conventional methods. It can hence be industrially practiced sufficiently.
Inventors:
NISHIMOTO YUKIFUMI (JP)
Application Number:
PCT/JP2004/017676
Publication Date:
May 26, 2006
Filing Date:
November 22, 2004
Export Citation:
Assignee:
NAGASE & CO LTD (JP)
NISHIMOTO YUKIFUMI (JP)
NISHIMOTO YUKIFUMI (JP)
International Classes:
C07C227/30; C07B53/00; C07C229/36; C07C249/02; C07C251/16; C07M7/00; (IPC1-7): C07C227/30; C07B53/00; C07C229/36; C07C249/02; C07C251/16; C07M7/00
Foreign References:
| JP2001048866A | 2001-02-20 | |||
| JP2002326992A | 2002-11-15 |
Attorney, Agent or Firm:
Nanjo, Hiromichi (Okina Bldg. 2-9, Nishitenma 3-chome, Kita-k, Osaka-shi Osaka, JP)
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