Title:
ISOLATION OF P-HYDROXYMANDELIC ACID
Document Type and Number:
Japanese Patent JPS5745134
Kind Code:
A
Abstract:
PURPOSE: To obtain the titled compound useful as an intermediate for a drug, agricultural chemical, other chemical products, by isolating p-hydroxymandelic acid having extremely high water-solubility as its salt of a metal, e.g., Ca, Mg, Zn, Ni, Cu, Ba, Dc, Ag, or Fe.
CONSTITUTION: An aqueous solution containing p-hydroxymandelic acid (e.g., a solution of a reaction product of phenol and glyoxylic acid in a basic aqueous medium) is reated with a chloride, hydroxide, or oxide of Ca, Mg, Zn, Ni, Cu, Ba, Cd, Ag or Fe, to give the metal hydroxymandelate, which is isolated.
EFFECT: The titled substance can be isolated simply in high yield.
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Inventors:
TAKEI MASAO
HAGITA KAZUTERU
YOSHIDA MASAO
NISHIZAWA RINZOU
HAGITA KAZUTERU
YOSHIDA MASAO
NISHIZAWA RINZOU
Application Number:
JP10641880A
Publication Date:
March 13, 1982
Filing Date:
August 04, 1980
Export Citation:
Assignee:
NIPPON KAYAKU KK
International Classes:
C07C59/52; C07C51/00; C07C51/487; C07C51/64; C07C67/00; (IPC1-7): C07C51/64; C07C59/52