CH210973A - Process for the preparation of a urea derivative. - Google Patents

Process for the preparation of a urea derivative.

Info

Publication number
CH210973A
CH210973A CH210973DA CH210973A CH 210973 A CH210973 A CH 210973A CH 210973D A CH210973D A CH 210973DA CH 210973 A CH210973 A CH 210973A
Authority
CH
Switzerland
Prior art keywords
urea derivative
preparation
water
phosgene
pale
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH210973A publication Critical patent/CH210973A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
    • C07C309/01—Sulfonic acids
    • C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C309/45—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
    • C07C309/51—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton at least one of the nitrogen atoms being part of any of the groups, X being a hetero atom, Y being any atom

Landscapes

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

Description

  

  Verfahren zur Darstellung eines     Harnstoffderivates.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines     Harn-          atoffderivates    der Formel  
EMI0001.0004     
    dadurch gekennzeichnet, dass man     2-Amino-          4'-chlor    - 3'-     methyl-6'-isopropyl-1,1'-diphenyt-          äther-4-sulfonsäure    mit     Phosgen    umsetzt. Das  neue     Harnstoffderivat    bildet als     Natriumsalz     ein helles, gut wasserlösliches Pulver, das  sich zur Verwendung als Mottenschutzmittel  eignet.  



       Beispiel:     20 Teile     2-Amiiio-4'-chlor-3'-methyl-6'-          isopropyl    -1,1' -     dipheriyläther    - 4 -     sulfonsäure     werden in     2"00    Teilen Wasser mit der nötigen  Menge 10     o/oiger        Sodalösung    in Lösung ge  bracht. Zu dieser Lösung gibt man 25 Teile  kristallisiertes     Natriumacetat    hinzu und leitet  bei 40-50<B>0</B> C     Phosgen    ein, bis eine Probe    kein freies Amin mehr anzeigt.

   Hierauf wird  das     Natriumsalz    des neuen     Harnstoffderivates     durch Zusatz von Kochsalz abgeschieden. Es  wird nach dem Abtrennen, Trocknen und  Mahlen als helles, gut wasserlösliches Pulver  erhalten. Die Ausbeute ist quantitativ.



  Process for the preparation of a urea derivative. The present patent relates to a process for the production of a urea derivative of the formula
EMI0001.0004
    characterized in that 2-amino-4'-chloro-3'-methyl-6'-isopropyl-1,1'-diphenyte ether-4-sulfonic acid is reacted with phosgene. The new urea derivative forms a pale, water-soluble powder as a sodium salt, which is suitable for use as a moth repellent.



       Example: 20 parts of 2-Amiiio-4'-chloro-3'-methyl-6'-isopropyl -1,1 '- Dipheriyläther - 4 - sulfonic acid are in 2 "00 parts of water with the necessary amount of 10% soda solution in 25 parts of crystallized sodium acetate are added to this solution and phosgene is passed in at 40-50 ° C. until a sample no longer shows any free amine.

   The sodium salt of the new urea derivative is then deposited by adding common salt. It is obtained as a pale, readily water-soluble powder after it has been separated off, dried and ground. The yield is quantitative.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Harn stoffderivates der Formel EMI0001.0024 dadurch gekennzeichnet, dass man 2-Amino- 4'-chlor - 3'- methyl-6'-isopropyl-1,1'-diphenyl- äther-4-sulfonsäure mit Phosgen umsetzt. Das neue Harnstoffderivat bildet als Natriumsalz ein helles, gut wasserlösliches Pulver, das sich zur Verwendung als Mottenschutzmittel eignet. PATENT CLAIM: Process for the production of a urea derivative of the formula EMI0001.0024 characterized in that 2-amino-4'-chloro-3'-methyl-6'-isopropyl-1,1'-diphenyl ether-4-sulfonic acid is reacted with phosgene. The new urea derivative forms a pale, water-soluble powder as a sodium salt, which is suitable for use as a moth repellent.
CH210973D 1938-06-16 1938-06-16 Process for the preparation of a urea derivative. CH210973A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH536047X 1938-06-16
CH210973T 1938-06-16

Publications (1)

Publication Number Publication Date
CH210973A true CH210973A (en) 1940-08-15

Family

ID=25724962

Family Applications (1)

Application Number Title Priority Date Filing Date
CH210973D CH210973A (en) 1938-06-16 1938-06-16 Process for the preparation of a urea derivative.

Country Status (1)

Country Link
CH (1) CH210973A (en)

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