GB867966A - Process for the synthesis of methionine - Google Patents

Process for the synthesis of methionine

Info

Publication number
GB867966A
GB867966A GB3468/60A GB346860A GB867966A GB 867966 A GB867966 A GB 867966A GB 3468/60 A GB3468/60 A GB 3468/60A GB 346860 A GB346860 A GB 346860A GB 867966 A GB867966 A GB 867966A
Authority
GB
United Kingdom
Prior art keywords
methionine
methylmercaptopropionaldehyde
synthesis
methylmercaptoin
acrolein
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
GB3468/60A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of GB867966A publication Critical patent/GB867966A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
    • C07C323/50—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton
    • C07C323/51—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C323/57—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups
    • C07C323/58—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups with amino groups bound to the carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
    • C07C319/20—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by reactions not involving the formation of sulfide groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/26—Separation; Purification; Stabilisation; Use of additives
    • C07C319/28—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
    • C07C323/50—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton
    • C07C323/51—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C323/60—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton with the carbon atom of at least one of the carboxyl groups bound to nitrogen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In a process for the preparation of methionine, b -methylmercaptopropionaldehyde is reacted with a cyanide in anhydrous liquid ammonia at a temperature within the range of from -10 to +50 DEG C. to give methionine nitrile which is then hydrolysed. The process may be combined with that in which the b -methylmercaptopropionaldehyde is prepared by reacting methylmercaptoin with acrolein in the presence of ammonium methyl mercaptide. U.S.A. Specification 2,732,400 is referred to.
GB3468/60A 1959-02-04 1960-02-01 Process for the synthesis of methionine Expired GB867966A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT867966X 1959-02-04

Publications (1)

Publication Number Publication Date
GB867966A true GB867966A (en) 1961-05-10

Family

ID=11330684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3468/60A Expired GB867966A (en) 1959-02-04 1960-02-01 Process for the synthesis of methionine

Country Status (1)

Country Link
GB (1) GB867966A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5663409A (en) * 1995-06-07 1997-09-02 Novus International, Inc. Process for the preparation of 3-(methylthio) propanal and 2-hydroxy-4-(methylthio) butanenitrile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5663409A (en) * 1995-06-07 1997-09-02 Novus International, Inc. Process for the preparation of 3-(methylthio) propanal and 2-hydroxy-4-(methylthio) butanenitrile
US5705675A (en) * 1995-06-07 1998-01-06 Novus International, Inc. Processes for the preparation of 3-(methylthio)propanal and 2-hydroxy-4-(methylthio)butanenitrile

Similar Documents

Publication Publication Date Title
FR1280616A (en) Improved urea synthesis process
CH396904A (en) Process for preparing nitrile compounds
GB867966A (en) Process for the synthesis of methionine
GB897931A (en) Preparation of ª-, ª--pentamethylene butyrolactone
FR1248313A (en) Process for the production of acrylonitrile or methacrylonitrile
GB873212A (en) Process for the manufacture of 1:1:1-trifluoro-2-chloro-2-bromethane
ES331797A1 (en) Procedure for the preparation of alynatic aminonitrils. (Machine-translation by Google Translate, not legally binding)
GB950668A (en) Improved production of direct positives by the silver salt diffusion process and a developer solution therefor
GB1103410A (en) Preparation of 3-amino-1,2,5-thiadiazole
NO740531L (en) Process for the preparation of an alkali metal amide by reacting liquid ammonia with an alkali metal.
GB939577A (en) Method for manufacture of 5-chloro-2, 4-bis (methylsulfamyl)-aniline
GB958866A (en) Production of ethylene sulphide
ES308607A1 (en) A procedure for the preparation of a compound of 2-alcohylthyrophene. (Machine-translation by Google Translate, not legally binding)
GB882843A (en) Glucuronic acid derivatives useful as intermediates in the production of antibacterials, and the production of said derivatives
ES213159A1 (en) A procedure for the obtaining of nitrile of acid metilenbis-aminocarboxºlico (Machine-translation by Google Translate, not legally binding)
GB938080A (en) Preparation of 2-amino-5-nitrothiazole
GB874070A (en) Process for the production of n -sulphanilyl-n-butyl urea
GB1030122A (en) Preparation of ª‡-fluoro-acrylonitrile
GB948755A (en) Unsaturated ketones
GB859245A (en) N-glycosides of 5-fluoro-cytosine and salts thereof and a process for the manufacture of same
GB952012A (en) A process for preparing dl-7-formamido-1,2,3-trialkoxy-5,6,7,7a,8,9,10,11-octahydrobenzo(a) heptalene compounds
GB810165A (en) Process for the preparation of lactams
GB670774A (en) Preparation of dl-methionine
FR1261114A (en) Process for the preparation of aqueous, stable solutions of ammonium cyanide
BE592478A (en) Process for the preparation of aqueous, stable solutions of ammonium cyanide