CH222976A - Process for the preparation of a mixed urea with a solubilizing group. - Google Patents

Process for the preparation of a mixed urea with a solubilizing group.

Info

Publication number
CH222976A
CH222976A CH222976DA CH222976A CH 222976 A CH222976 A CH 222976A CH 222976D A CH222976D A CH 222976DA CH 222976 A CH222976 A CH 222976A
Authority
CH
Switzerland
Prior art keywords
preparation
solubilizing group
mixed urea
mixed
urea
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH222976A publication Critical patent/CH222976A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
    • C07C303/22—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof from sulfonic acids, by reactions not involving the formation of sulfo or halosulfonyl groups; from sulfonic halides by reactions not involving the formation of halosulfonyl groups

Landscapes

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

Description

  

  Verfahren zur Herstellung eines gemischten Harnstoffes mit     löslichmachender    Gruppe.    Gegenstand der vorliegenden     Erfindung     ist ein Verfahren zur     Herstellung    eines ge  mischten Harnstoffes mit     löslichmachender          Gruppe.    Das Verfahren ist dadurch gekenn  zeichnet, dass man     4,4'-Dichlor-2'-sulfodiphe-          nyläther-2-0-phenyl-urethan    in Gegenwart  von Wasser mit     2,4-Dichloranilin    umsetzt.  



  Der erhaltene gemischte     Harnstoff    ist  neu. Er fällt in Form farbloser Kristalle an,  die     in.    Wasser löslich     sind,    und als Zwischen  produkt zur Herstellung von Farbstoffen       Verwendung        finden    können.  



  <I>Beispiel:</I>  Zu     einer        wässrigen        Emulsion    von     l/lo        mol     des     4,4'-Di:chlo@r-2'-s,ulfodip:henyl'äther-2-0-          phenyl.-urethans        gibt    man 16,2 g     2,4-Dichlor-          anilin    und erwärmt einige Stunden     im     siedenden Wasserbad.

   Dann     destilliert    man  das nicht umgesetzte     2,4-Dichloranilin    mit  Wasserdampf ab,     sättigt    den     Kolbeninhalt     mit Kochsalz, entfernt die     wässrige    Lauge    von dem ausgefallenen<B>01,</B> nimmt dieses in  wenig warmem Wasser auf, wobei der     ge-          mischte    Harnstoff allmählich     kristallisiert.     Man saugt ab und trocknet. Man erhält farb  lose     Kristalle    in :sehr guter Ausbeute. Ebenso  kann man von dem     kristallisierten        Phenyl-          urethan    ausgehen.



  Process for the preparation of a mixed urea having a solubilizing group. The present invention relates to a process for the preparation of a mixed urea having a solubilizing group. The process is characterized in that 4,4'-dichloro-2'-sulfodiphenyl ether-2-0-phenyl-urethane is reacted with 2,4-dichloroaniline in the presence of water.



  The mixed urea obtained is new. It is obtained in the form of colorless crystals which are soluble in water and which can be used as an intermediate in the production of dyes.



  <I> Example: </I> To an aqueous emulsion of 1 / lo mol of 4,4'-Di: chlo @ r-2'-s, ulfodip: henyl'äther-2-0-phenyl.-urethane is added 16.2 g of 2,4-dichloroaniline are added and heated for a few hours in a boiling water bath.

   The unreacted 2,4-dichloroaniline is then distilled off with steam, the contents of the flask are saturated with common salt, the aqueous alkali is removed from the precipitated 01, this is taken up in a little warm water, the mixed Urea gradually crystallizes. You vacuum and dry. Colorless crystals are obtained in: very good yield. One can also start from the crystallized phenyl urethane.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines ge mischten Harnstoffes mit löslichmachender Gruppe, dadurch gekennzeichnet, dass man das 4,4'-Dichlor-2'-sulfodiphenyläther-2-0- phenyl-urethan in Gegenwart von Wasser mit 2,4-Diehloranilin umsetzt. Der erhaltene gemischte Harnstoff fällt in Form farbloser Kristalle an, die in Wasser löslich sind. Claim: Process for the preparation of a mixed urea with a solubilizing group, characterized in that the 4,4'-dichloro-2'-sulfodiphenyl ether-2-0-phenyl urethane is reacted with 2,4-diehloraniline in the presence of water. The mixed urea obtained is obtained in the form of colorless crystals which are soluble in water.
CH222976D 1938-11-11 1939-11-02 Process for the preparation of a mixed urea with a solubilizing group. CH222976A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE222976X 1938-11-11
CH216163T 1939-11-02

Publications (1)

Publication Number Publication Date
CH222976A true CH222976A (en) 1942-08-15

Family

ID=25725816

Family Applications (1)

Application Number Title Priority Date Filing Date
CH222976D CH222976A (en) 1938-11-11 1939-11-02 Process for the preparation of a mixed urea with a solubilizing group.

Country Status (1)

Country Link
CH (1) CH222976A (en)

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