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Title:
METHOD FOR RECOVERING N-ALKOXYCARBONYL-TERT-LEUCINE
Document Type and Number:
Japanese Patent JP2003146962
Kind Code:
A
Abstract:

To provide a method for the recovery of an N-alkoxycarbonyl-tert- leucine capable of simplifying the subsequent separation process and achieving high yield after the separation process.

The method for the recovery of the N-alkoxycarbonyl-tert- leucine comprises the recovery of the compound from a solution containing the N-alkoxycarbonyl-tert-leucine into an aromatic hydrocarbon solvent while keeping the temperature to ≥40°C. The aromatic hydrocarbon solvent for the recovery of the N-alkoxycarbonyl-tert-leucine is preferably one or more solvents selected from benzene, toluene, ethylbenzene, o-xylene, m-xylene and p-xylene.


Inventors:
KATO OSAMU
NAKAMURA TETSUJI
Application Number:
JP2001345218A
Publication Date:
May 21, 2003
Filing Date:
November 09, 2001
Export Citation:
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Assignee:
MITSUBISHI RAYON CO
International Classes:
C07C269/08; C07C271/22; (IPC1-7): C07C269/08; C07C271/22
Attorney, Agent or Firm:
Masatake Shiga (6 people outside)