2-ヒドロキシ-4-メチルチオ酪酸(MHA)を製造する方法、MHAおよびその使用

Japanese Patent JP4012244

B2

PCT No. PCT/EP95/02515 Sec. 371 Date Jan. 13, 1997 Sec. 102(e) Date Jan. 13, 1997 PCT Filed Jun. 28, 1995 PCT Pub. No. WO96/01809 PCT Pub. Date Jan. 25, 1996It is known to isolate MHA from a reaction mixture obtained by the addition of hydrocyanic acid (HCN) to methyl mercaptopropionic aldehyde (MMP) and the hydrolysis of the methyl mercapto propionic aldehyde cyanohydrine (MMP-CH) obtained thereby with sulphuric acid, in which the reaction mixture is brought into contact with a substantially non-water-miscible organic solvent, in order to form an extraction solution having the solvent and MHA transferred from the reaction mixture, and the MHA is obtained as an extract from this extraction solution by concentration. The simplest and most economical process of the invention concerning the processing of the reaction product which facilitates the production of a highly concentrated product with an extremely low dimer, oligomer and by-product content, is characterised in that the concentration is conducted in such a way that the remaining extract contains less than 4 wt % and preferably less than 2 wt % of water. Animal feed supplement, mixtures for supplementing animal feed, e.g. with methionine or ammonium-MHA.

JPS6092255	NOVEL BICYCLOOCTANE DERIVATIVE AND ITS PREPARATION
WO/1990/007514	NEW BINUCLEAR PLATINUM COMPLEX AND ANTINEOPLASTIC AGENT CONTAINING SAME AS ACTIVE INGREDIENT

Hans-Albrecht Hasseberg
Klaus Hootmacher
Herbert Tanner
Volker Hofner
Harald Heinzel

JP50408496A

November 21, 2007

June 28, 1995

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Degussa GmbH

C07C323/52; A23K1/16; C07C319/20; C07C319/28; C07C323/60

JP60156396A
JP60166661A
JP6049020A
JP4040898A
JP62267260A
JP60100553A

US4912257

Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel

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