GB1124149A - Process for the preparation of ª‡-amino acids - Google Patents

Process for the preparation of ª‡-amino acids

Info

Publication number
GB1124149A
GB1124149A GB5487466A GB5487466A GB1124149A GB 1124149 A GB1124149 A GB 1124149A GB 5487466 A GB5487466 A GB 5487466A GB 5487466 A GB5487466 A GB 5487466A GB 1124149 A GB1124149 A GB 1124149A
Authority
GB
United Kingdom
Prior art keywords
ammonia
carried out
reaction medium
reaction
amino acids
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5487466A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stamicarbon BV filed Critical Stamicarbon BV
Publication of GB1124149A publication Critical patent/GB1124149A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles

Abstract

a -Amino acids are prepared by the one-stage conversion of an aldehyde by means of ammonia and a cyanide into the corresponding a -aminonitrile and subsequent hydrolysis of the nitrile formed, the conversion to the a -aminonitrile being carried out in a reaction medium having dissolved therein at least one compound which enhances the solubility of ammonia in the reaction medium, the said compound being one or more of ammonium chloride, ammonium bromide, ammonium cyanide, sodium iodide, potassium iodide and lithium chloride, in a total proportion of more than 0.5 mole per mole of aldehyde to be converted and the reaction is carried out with at least the proportion of ammonia required to saturate such a reaction medium. The reaction medium is preferably kept saturated with ammonia. The reaction is preferably carried out at temperatures in the range from 0 DEG to 70 DEG C., and the subsequent hydrolysis may be carried out by any known technique. Examples are given of the preparation of methionine, alanine, and glutamic acid.
GB5487466A 1965-12-08 1966-12-07 Process for the preparation of ª‡-amino acids Expired GB1124149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6515920A NL6515920A (en) 1965-12-08 1965-12-08

Publications (1)

Publication Number Publication Date
GB1124149A true GB1124149A (en) 1968-08-21

Family

ID=19794848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5487466A Expired GB1124149A (en) 1965-12-08 1966-12-07 Process for the preparation of ª‡-amino acids

Country Status (8)

Country Link
BE (1) BE690594A (en)
CH (1) CH472373A (en)
DE (1) DE1543916A1 (en)
DK (1) DK131499B (en)
ES (1) ES334379A1 (en)
FR (1) FR1503158A (en)
GB (1) GB1124149A (en)
NL (1) NL6515920A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372797A1 (en) * 1976-12-03 1978-06-30 Anvar PROCESS FOR CHEMICAL CATALYTIC HYDROLYSIS OF A-AMINO-NITRILS OR THEIR SALTS
DE3242748C1 (en) * 1982-11-19 1984-03-01 Degussa Ag, 6000 Frankfurt Process for the preparation of ss-hydroxy-alpha-aminocarboxylic acids

Also Published As

Publication number Publication date
DE1543916A1 (en) 1970-02-05
FR1503158A (en) 1967-11-24
DK131499C (en) 1975-12-22
ES334379A1 (en) 1967-11-01
CH472373A (en) 1969-05-15
NL6515920A (en) 1967-06-09
BE690594A (en) 1967-06-02
DK131499B (en) 1975-07-28

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