CH210966A - Process for the preparation of a urea derivative. - Google Patents

Process for the preparation of a urea derivative.

Info

Publication number
CH210966A
CH210966A CH210966DA CH210966A CH 210966 A CH210966 A CH 210966A CH 210966D A CH210966D A CH 210966DA CH 210966 A CH210966 A CH 210966A
Authority
CH
Switzerland
Prior art keywords
urea derivative
preparation
phosgene
pale
chloro
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
Priority claimed from CH210966T external-priority
Application filed by Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH210966A publication Critical patent/CH210966A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00Sulfonic acids; Halides, esters, or anhydrides thereof
    • C07C309/01Sulfonic acids
    • C07C309/28Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C309/45Sulfonic 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
    • C07C309/51Sulfonic 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

Description

  

  Verfahren zur Darstellung eines     Harnstoffderivates.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines Harn  stoffderivates der Formel  
EMI0001.0002     
    dadurch gekennzeichnet, dass man     2-(4"-          Chlorbenzyl        -amino)-4'-chlor-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.  



  <I>Beispiel:</I>  17 Teile     2-(4"-Chlorbenzyl-amino)-4'-chlor-          1,1'-diphenyläther-4-sulfonsäure    werden in  250 Teilen Wasser mit der nötigen Menge  10      /oiger        Sodalösung    in Lösung gebracht. Zu  dieser Lösung gibt man 30 Teile kristalli  siertes     Natriumacetat    hinzu und leitet bei  40-50<B>0 0</B>     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 subject of the present patent is a process for the preparation of a urea derivative of the formula
EMI0001.0002
    characterized in that 2- (4 "- chlorobenzylamino) -4'-chloro-1,1'-diphenyl ether-4-sulfonic acid is reacted with phosgene. The new urea derivative forms a pale, readily water-soluble powder as the sodium salt, which is suitable for use as a moth repellent.



  <I> Example: </I> 17 parts of 2- (4 "-chlorobenzyl-amino) -4'-chloro-1,1'-diphenyl ether-4-sulfonic acid are dissolved in 250 parts of water with the necessary amount of 10% soda solution 30 parts of crystallized sodium acetate are added to this solution and phosgene is passed in at 40-50 0 0 until a sample no longer shows any free amine, whereupon the sodium salt of the new urea derivative is passed through After separating off, drying and grinding, it is obtained as a pale, readily water-soluble powder. The yield is quantitative.

 

Claims (1)

EMI0001.0019 EMI0001.0020 dadurch gekennzeichnet, dass man 2-(4"- Chlorbenzyl- amino)-4'-chlor-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. EMI0001.0019 EMI0001.0020 characterized in that 2- (4 "- chlorobenzylamino) -4'-chloro-1,1'-diphenyl ether-4-sulfonic acid is reacted with phosgene. The new urea derivative forms a pale, readily water-soluble powder as the sodium salt, which is suitable for use as a moth repellent.
CH210966D 1938-06-16 1938-06-16 Process for the preparation of a urea derivative. CH210966A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH210966T 1938-06-16
CH536047X 1938-06-16

Publications (1)

Publication Number Publication Date
CH210966A true CH210966A (en) 1940-08-15

Family

ID=25724955

Family Applications (1)

Application Number Title Priority Date Filing Date
CH210966D CH210966A (en) 1938-06-16 1938-06-16 Process for the preparation of a urea derivative.

Country Status (1)

Country Link
CH (1) CH210966A (en)

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