CH306990A - Process for the preparation of ethylene urea-N, N'-dipropionic acid. - Google Patents

Process for the preparation of ethylene urea-N, N'-dipropionic acid.

Info

Publication number
CH306990A
CH306990A CH306990DA CH306990A CH 306990 A CH306990 A CH 306990A CH 306990D A CH306990D A CH 306990DA CH 306990 A CH306990 A CH 306990A
Authority
CH
Switzerland
Prior art keywords
ethylene urea
dipropionic acid
acid
preparation
added
Prior art date
Application number
Other languages
German (de)
Inventor
Mainkur Cassella Farbwerke
Original Assignee
Cassella Farbwerke Mainkur Ag
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 Cassella Farbwerke Mainkur Ag filed Critical Cassella Farbwerke Mainkur Ag
Publication of CH306990A publication Critical patent/CH306990A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D233/00Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
    • C07D233/04Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D233/28Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D233/30Oxygen or sulfur atoms
    • C07D233/32One oxygen atom

Landscapes

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

Description

  

  Verfahren zur Herstellung von     Äthylenharnstoff.N,N'.dipropionsäure.       Es wurde gefunden, dass man neue     Dipro-          pionsä.uren    der     heteroc5-elisehen    Reihe erhält,  wenn man an     heterocyclische    Verbindungen,  welche zwei     NH-Gruppen    und mindestens eine  CO- oder     CS-Gruppe    im Ring enthalten,       Acrylsäure    oder deren     Substitutionsprodukte     bzw.

   funktionelle Derivate dieser Säuren an  lagert und die so erhaltenen     N-Substitutions-          produkte    der     heterocy        clisehen        Verbindungen          gegebenenfalls    zu den betreffenden     N,N'-Di-          propionsäuren    verseift.  



  Die so erhaltenen. neuen Verbindungen  sind infolge der in ihnen enthaltenen Grup  pen, z. B. der     Carboxylgruppen,    zu weiteren  Umsetzungen befähigt und stellen deshalb       werkvolle    Zwischenprodukte der chemischen  Industrie, z. B. zur Herstellung von Farb  stoffen. Textilhilfsmitteln, Heilmitteln, Kunst  stoffen, dar. Bei     geeigneter    Wahl der Aus  gangsmaterialien besitzen sie auch selbst be  reits therapeutisch wertvolle Eigenschaften.  



  Gegenstand der vorliegenden Erfindung  ist. nun ein Verfahren zur Herstellung von       Ulrvlenharnstoff    -     N,N'    -     dipropionsäure,        wel-          clres    dadurch gekennzeichnet ist, dass man an       ä.thvlenlrarnstoff    ein Derivat der     Aerylsättre,     das an Stelle der     Carboxylgruppe    einen zu  einer solchen     verseifbaren    Rest enthält,

   an  lagert und das so erhaltene     N-Substit.utions-          produkt    des     Äthylenharnstoffes    zur     entspre-          ehenden        N-N'-Dipropionsäure    verseift.    Die so erhaltene     Äthylenhainstoff-N,N'-di-          propionsäure    stellt eine farblose, kristalline  Substanz vom Schmelzpunkt     120-122     dar.  



  <I>Beispiel:</I>  Zu einer Suspension von 172 Teilen     Äthy-          lenharnstoff    und 17 Teilen     gepulvertem    Ätz  natron in 400 Teilen     Dioxan    lässt man unter  gutem Rühren bei 45-50  langsam 212 Teile       Acrylnitril    zufliessen. Die Mischung wird noch  etwa 12 Stunden bei etwa 45-50  gehalten,  wobei der     lithylenharnstoff    unter Bildung  von     N,1\"-Di-(f-cyan-äthyl)-äthylenharnstoff     in Lösung geht.     1lfan    kühlt, nun auf etwa 20   ab, neutralisiert mit     50 /oi-er    Schwefelsäure  und destilliert das     Dioxan    ab.

   Der Rückstand  wird mit heissem Methanol     digeriert    und die       methanolische    Lösung vom Glaubersalz     abfil-          triert.    Aus dem Filtrat gewinnt man nach  dem Verdampfen des Lösungsmittels durch  Vakuumdestillation den     N,N'    -     Di    -     (ss    -     eyan-          äthyl)-äthylenlrarnstoff    als Öl vom     Kp.l    :230  bis 238 , das beim Abkühlen zu farblosen Kri  stallen erstarrt.  



  Der     N,N'-Di-(ss-cya.n-äthyl)-äthylenharn-          stoff    liefert. bei der     Verseifunu,    die zum Bei  spiel sauer oder alkalisch in     üblieher        Weise          durehgeführt    werden kann, in guter     Ausbeute     die     Äthylenharrrstoff-N,N'-dipropionsättre    vom       Sehmelzpunkt    120-122  und der Formel    
EMI0002.0001     
    Ersetzt man das     Acrylnitril        ziem    Beispiel  durch     Acrylsäureäthylester,    so erhält man  nach     Verseifung    die gleiche Säure.



  Process for the production of ethylene urea.N, N'.dipropionic acid. It has been found that new dipropionic acids of the heteroc5-elisehen series are obtained when acrylic acid or its substitution products or their substitution products are added to heterocyclic compounds which contain two NH groups and at least one CO or CS group in the ring.

   functional derivatives of these acids are added and the N-substitution products of the heterocyclic compounds thus obtained are optionally saponified to give the relevant N, N'-propionic acids.



  The thus obtained. new compounds are pen due to the groups contained in them, z. B. the carboxyl groups, capable of further reactions and are therefore valuable intermediates in the chemical industry, z. B. for the production of color materials. Textile auxiliaries, remedies, synthetic materials. With a suitable choice of starting materials, they also have therapeutically valuable properties themselves.



  The subject of the present invention is. Now a process for the production of ulcer urea - N, N '- dipropionic acid, which is characterized in that a derivative of aeryl saturation is added to the ethereal urea which, instead of the carboxyl group, contains a residue which can be saponified to form such a substance,

   and the resulting N-substitution product of the ethylene urea is saponified to give the corresponding N-N'-dipropionic acid. The Ethylenhainstoff-N, N'-propionic acid thus obtained is a colorless, crystalline substance with a melting point of 120-122.



  <I> Example: </I> 212 parts of acrylonitrile are slowly added to a suspension of 172 parts of ethylene urea and 17 parts of powdered caustic soda in 400 parts of dioxane with thorough stirring at 45-50. The mixture is kept at about 45-50 for about 12 hours, the lithylenurea dissolving with the formation of N, 1 \ "- di- (f-cyano-ethyl) -ethylene urea. 1lfan cools, now down to about 20, neutralized with 50% sulfuric acid and the dioxane is distilled off.

   The residue is digested with hot methanol and the methanolic solution is filtered off from the Glauber's salt. After evaporation of the solvent by vacuum distillation, the N, N '- di - (ss - eyan-ethyl) -äthylenlrarnstoff is obtained from the filtrate as an oil with a boiling point of 230 to 238, which solidifies to colorless crystals on cooling.



  The N, N'-di- (ss-cya.n-ethyl) -ethylene urea supplies. in the case of saponification, which can be carried out in the usual acidic or alkaline manner, for example, the ethylene urea-N, N'-dipropionate from the melting point 120-122 and the formula in good yield
EMI0002.0001
    If the acrylonitrile is replaced by ethyl acrylate, for example, the same acid is obtained after saponification.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Äthylen harnstoff - N,N' - dipropionsäure, dadurch ge kennzeichnet, dass man an Äthylenharnstoff ein Derivat der Acrylsäure, das an Stelle der Carboxylgruppe einen zu einer solchen v er seifbaren Rest, enthält, anlagert und das so erhaltene N-Substitutionsprodukt des Äthylen- harnstoffes zur entsprechenden N,N'-Dipro- pionsäure verseift. PATENT CLAIM: A process for the production of ethylene urea - N, N '- dipropionic acid, characterized in that a derivative of acrylic acid, which instead of the carboxyl group contains a residue that can be soaped off to such a degree, is added to ethylene urea and the resulting residue is added N-substitution product of ethylene urea saponified to give the corresponding N, N'-dipropionic acid. Die so erhaltene Ä thy ienharnstoff-N,N'- dipropionsäure stellt eine farblose, kristalline Substanz vom Schmelzpunkt 120-122 dar. Sie kann als Zwischenprodukt zur Erzeu gung von Superpolyamid- bzw. Polyester- Kunstharzen durch Kondensation mit Diami nen bzw. Glykolen verwendet werden. The thus obtained ethy ienurea-N, N'-dipropionic acid is a colorless, crystalline substance with a melting point of 120-122. It can be used as an intermediate product for the production of superpolyamide or polyester synthetic resins by condensation with diamines or glycols will.
CH306990D 1951-03-06 1952-03-05 Process for the preparation of ethylene urea-N, N'-dipropionic acid. CH306990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE306990X 1951-03-06

Publications (1)

Publication Number Publication Date
CH306990A true CH306990A (en) 1955-05-15

Family

ID=6121291

Family Applications (1)

Application Number Title Priority Date Filing Date
CH306990D CH306990A (en) 1951-03-06 1952-03-05 Process for the preparation of ethylene urea-N, N'-dipropionic acid.

Country Status (1)

Country Link
CH (1) CH306990A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972618A (en) * 1956-12-05 1961-02-21 Rohm & Haas Adducts of heterocyclic amides
US3021338A (en) * 1956-12-05 1962-02-13 Rohm & Haas Adducts of heterocyclic amides

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972618A (en) * 1956-12-05 1961-02-21 Rohm & Haas Adducts of heterocyclic amides
US3021338A (en) * 1956-12-05 1962-02-13 Rohm & Haas Adducts of heterocyclic amides

Similar Documents

Publication Publication Date Title
DE872041C (en) Process for the production of water-soluble, asymmetrical condensation products
CH306990A (en) Process for the preparation of ethylene urea-N, N&#39;-dipropionic acid.
DE3235372C2 (en)
DE859314C (en) Process for the preparation of dipropionic acids of the heterocyclic series
DE2143709A1 (en)
AT162888B (en) Process for the preparation of new 4-aminobenzenesulfonic ureas
DE1121052B (en) Process for the preparation of 4, 5-substituted 2-amino-oxazoles
DE859312C (en) Process for the preparation of dicarboxylic acid derivatives of the heterocyclic series
AT210874B (en) Process for the preparation of new polysulfonic acid esters
DE677898C (en) Process for the production of condensation products
DE737931C (en) Process for the preparation of 2,4-diaminochinazoline
DE855398C (en) Process for the preparation of p-aminobenzenesulfonylguanidine
DE888847C (en) Process for the production of urea-N, N&#39;-dicarboxylic acids
DE1670261A1 (en) Process for the preparation of N-hexahydropyrimidyl- (4) -carbamine acid esters
DE832150C (en) Process for the production of ª † -Arylsulfonylcarbonsäuren
AT227696B (en) Process for the preparation of 2-amino-oxazoles
DE964324C (en) Process for the preparation of 2-amino-5-imino-pyrrolenines
DE950912C (en) Process for the production of ª ‰ -amino- (N-sulfosaeure) -carboxylic acids or their esters and salts
DE930688C (en) Process for the preparation of 4-amino-2-oxybenzoic acid acetylamide
DE3047043A1 (en) 2-Amino-benzimidazole derivs. prodn. - by reaction of an ortho-phenylene:di:amine with cyanogen chloride in a suitable diluent e.g. water
EP0185279B1 (en) Process for the preparation of 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine
DE963509C (en) Process for the preparation of sulfonic acids containing halogenated carbocyclic compounds
DE1900948C (en) Cis- and trans-2-methyl-5- (3, 4, S-trimethoxybenzamidoJ-decahydroisoquinoline
DE1059465B (en) Process for the production of barbituric acid derivatives
DE1143805B (en) Process for the preparation of p-toluenesulfonylureas