CH220403A - Process for the production of a new intermediate product. - Google Patents

Process for the production of a new intermediate product.

Info

Publication number
CH220403A
CH220403A CH220403DA CH220403A CH 220403 A CH220403 A CH 220403A CH 220403D A CH220403D A CH 220403DA CH 220403 A CH220403 A CH 220403A
Authority
CH
Switzerland
Prior art keywords
new intermediate
intermediate product
amino
production
parts
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH220403A publication Critical patent/CH220403A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C275/00—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C275/28—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C275/40—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton being further substituted by nitrogen atoms not being part of nitro or nitroso groups

Landscapes

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

Description

  

      Verfahren    zur Herstellung eines neuen Zwischenproduktes.    Es wurde gefunden, dass man ein neues  Zwischenprodukt, den     N-Phenyl-N'-(2,5-di-          äthoxy-4-amino)-phenylharxistoff,    erhält, wenn  man auf 1     Mol        1-Amino-4-acetylamino-2,5-          diäthoxybenzol    1     Mol        Phenylisocyanat    ein  wirken lässt und hierauf das entstandene Pro  dukt mit einem     Verseifungsmittel    behandelt.  



  Das neue Zwischenprodukt bildet einen  kristallinischen Körper, der sich unter Zusatz  von     Salzsäure    in Wasser     diazotieren    lässt.  Diese     Diazoverbindung    gibt mit     Aryliden    der       2,3-Oxynaphthoesäure        Farbstoffe,    welche, auf  der Faser erzeugt, diese in echten blauen  Tönen färben.  



  <I>Beispiel:</I>  23,8 Teile     1-Amino-4-acetylamino-2,5-di-          äthoxybenzol    werden in 400 Teilen siedendem  Benzol gelöst und mit einer Lösung von 12  Teilen     Phenylisocyanat    in 50 Teilen Benzol  auf einmal versetzt. Nach einigen Sekunden  erstarrt alles zu einem dicken Brei. Nach dem  Abkühlen wird das Umsetzungsprodukt ab  filtriert.     Zur        Abspaltung    der     Acetylgruppe     werden 35,7 Teile davon mit 450 Teilen Al  kohol und 14     Teilen    33      /oiger    Chlorwasser-         stoffsäure    während 2 Stunden erhitzt. Nach       und    nach geht alles in Lösung.

   Durch Ein  dampfen im Vakuum bei 70-80o wird das  weisse kristalline Chlorhydrat des     N-Phenyl-          N'-    (2,5-     diäthoxy-    4 -     amino)    -     phenylharnstoffe    s  erhalten.



      Process for the production of a new intermediate product. It has been found that a new intermediate, the N-phenyl-N '- (2,5-diethoxy-4-amino) -phenylharxistoff, is obtained when 1-amino-4-acetylamino-2 , 5- diethoxybenzene 1 mole of phenyl isocyanate can act and then treated the resulting product with a saponifying agent.



  The new intermediate product forms a crystalline body that can be diazotized in water with the addition of hydrochloric acid. This diazo compound, together with arylides of 2,3-oxynaphthoic acid, gives dyes which, when produced on the fiber, dye them in true blue tones.



  <I> Example: </I> 23.8 parts of 1-amino-4-acetylamino-2,5-diethoxybenzene are dissolved in 400 parts of boiling benzene, and a solution of 12 parts of phenyl isocyanate in 50 parts of benzene is added all at once . After a few seconds everything solidifies into a thick paste. After cooling, the reaction product is filtered off. To split off the acetyl group, 35.7 parts of it are heated with 450 parts of alcohol and 14 parts of 33% hydrochloric acid for 2 hours. Little by little everything goes into solution.

   The white crystalline hydrochloride of N-phenyl-N'- (2,5-diethoxy-4-amino) -phenylureas is obtained by evaporating in vacuo at 70-80o.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Zwischenproduktes, des N-PheDyl-N'-(2,5-di- äthoxy-4-amino)-phenylharnstoffes, dadurch gekennzeichnet, dass man auf 1 Mol 1-Amino- 4-acetylamino-2,5-diäthoxybenzol 1 Mol Phe- nylisocyanat einwirken lässt und hierauf das entstandene Produkt mit einem Verseifungs- mittel behandelt. Das neue Zwischenprodukt bildet einen kristallinischen Körper, der sich unter Zusatz von Salzsäure in Wasser diazotieren lässt. PATENT CLAIM: Process for the preparation of a new intermediate, the N-PheDyl-N '- (2,5-diethoxy-4-amino) -phenylurea, characterized in that 1-amino-4-acetylamino-2 , 5-diethoxybenzene allows 1 mol of phenyl isocyanate to act and then treats the resulting product with a saponifying agent. The new intermediate product forms a crystalline body that can be diazotized in water with the addition of hydrochloric acid. Diese Diazoverbindung gibt mit Aryliden der 2,3-Oxynaphthoesäure Farbstoffe, welche, auf der Faser erzeugt, diese in echten blauen Tönen färben. This diazo compound, together with arylides of 2,3-oxynaphthoic acid, gives dyes which, when produced on the fiber, dye them in true blue tones.
CH220403D 1940-07-20 1940-07-20 Process for the production of a new intermediate product. CH220403A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH220403T 1940-07-20
CH217227T 1940-07-20

Publications (1)

Publication Number Publication Date
CH220403A true CH220403A (en) 1942-03-31

Family

ID=25725916

Family Applications (1)

Application Number Title Priority Date Filing Date
CH220403D CH220403A (en) 1940-07-20 1940-07-20 Process for the production of a new intermediate product.

Country Status (1)

Country Link
CH (1) CH220403A (en)

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