CH222977A - 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
CH222977A
CH222977A CH222977DA CH222977A CH 222977 A CH222977 A CH 222977A CH 222977D A CH222977D A CH 222977DA CH 222977 A CH222977 A CH 222977A
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 CH222977A publication Critical patent/CH222977A/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

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  • 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     IIarnstoffes    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'-sulfodi-          phenyläther-2-0-phenyl-urethan    in Gegen  wart von Wasser mit     3,4-Dichloranilin    um  setzt.  



  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 sollen.  



  <I>Beispiel:</I>  Zu einer     wässrigen    Emulsion von     '/1o        Mol     des     4,4'-Dichlor-2'-sulfodiphenyläther-2-0-          phenyl-uretlhans    gibt man<B>16,2</B> g     3,4-Dichlor-          anilin    und erwärmt     einige    Stunden     im     siedenden Wasserbad.

   Dann     destilliert    man  das nicht umgesetzte     3,4-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       Phenylurethan    ausgehen.



  Process for the preparation of a mixed urea with 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 3,4-dichloroaniline in the presence of water.



  The mixed urea obtained is new. It is obtained in the form of colorless crystals that are soluble in water and are intended to be used as an intermediate in the manufacture of dyes.



  <I> Example: </I> <B> 16.2 </B> are added to an aqueous emulsion of 1/10 mol of 4,4'-dichloro-2'-sulfodiphenyl ether-2-0-phenyl-urethane g of 3,4-dichloro aniline and heated for a few hours in a boiling water bath.

   The unreacted 3,4-dichloroaniline is then distilled off with steam, the contents of the flask are saturated with sodium chloride, the aqueous alkali is removed from the precipitated 01, and this is taken up in a little warm water, with the mixed urea gradually crystallized. You vacuum and dry. Colorless crystals are obtained in a very good yield. You 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 3,4-Dichloranilin umsetzt. Der erhaltene gemischte Harnstoff fällt in Form farbloser Kristalle an, die in Wasser löslich sind. PATENT CLAIM: Process for the production of a mixed urea with a solubilizing group, characterized in that: the 4,4'-dichloro-2'-sulfodiphenyl ether - 2--0- phenyl: urethane in the presence of water with 3,4- Dichloroaniline converts. The mixed urea obtained is obtained in the form of colorless crystals which are soluble in water.
CH222977D 1938-11-11 1939-11-02 Process for the preparation of a mixed urea with a solubilizing group. CH222977A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE222977X 1938-11-11
CH216163T 1939-11-02

Publications (1)

Publication Number Publication Date
CH222977A true CH222977A (en) 1942-08-15

Family

ID=25725817

Family Applications (1)

Application Number Title Priority Date Filing Date
CH222977D CH222977A (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) CH222977A (en)

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