80-60-4Relevant articles and documents
METHOD OF SEPARATING AND COLLECTING OPTICALLY ACTIVE AMINO ACID AMIDE
-
Page/Page column 11-12;13, (2008/06/13)
[PROBLEMS] To provide a method of efficiently separating and collecting an optically active amino acid amide and an optically active amino acid, which are highly important substances as intermediates in producing various industrial products, pesticides and medicines, from an aqueous solution containing the optically active amino acid amide and the optically active amino acid. [MEANS FOR SOLVING PROBLEMS] In separating and collecting an optically active amino acid amide from an aqueous solution containing the optically active amino acid amide and an optically active amino acid by using the difference in solubility in an organic solvent between the optically active amino acid amide and the optically active amino acid, the separation/collection procedures are carried out, without desalting the aqueous solution or after desalting the same, under such conditions that the ratio (C/A) of the sum of the anionic equivalents (A) contained in the aqueous solution to the sum of the cation equivalents (C) ranges from 0.95 to 1.05 in the case of the non-desalted aqueous solution, or from 0.5 to 1.5 in the case of the desalted aqueous solution.
Resolution of Underivatized Amino Acids by Reversed-Phase Chromatography
Gil-Av, E.,Tishbee, A.,Hare, P. E.
, p. 5115 - 5117 (2007/10/02)
-