CH220407A - Process for the preparation of an oxyarylsulfone. - Google Patents

Process for the preparation of an oxyarylsulfone.

Info

Publication number
CH220407A
CH220407A CH220407DA CH220407A CH 220407 A CH220407 A CH 220407A CH 220407D A CH220407D A CH 220407DA CH 220407 A CH220407 A CH 220407A
Authority
CH
Switzerland
Prior art keywords
sulfone
preparation
oxyarylsulfone
oxy
heated
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 CH220407A publication Critical patent/CH220407A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C317/00—Sulfones; Sulfoxides

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     Ogyarylsulfons.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Oxyarylsul-          fons,    dadurch gekennzeichnet, dass man 3,4  Dichlordiphenylsulfon mit einem     alkalisch     wirkenden Mittel erhitzt.  



  Das so erhaltene     4-Oxy-3-chlordiphenyl-          sulfon    ist ein farbloser Körper vom Schmelz  punkt 176   C. Es soll als Zwischenprodukt  zur Herstellung von     Farbstoffen,        Heilmitteln,          Textil-    und     Gerbereihilfsmitteln    sowie von  synthetischen Harzen Verwendung finden.  



       Beispiel:     45,5 Teile     3,4-Dichlordiphenylsulfon    wer  den mit 19 Teilen     Ätzkali    in etwa 400 Teilen  Wasser im     Autoklaven    etwa 8 Stunden auf  etwa 200<B>0</B> C erhitzt. Durch Ansäuern der    erhaltenen     Lösung    erhält man das     4-Oxy-3-          chlordiphenylsulfon    vom     Schmelzpunkt    176   C.



  Process for the preparation of an ogyaryl sulfone. The present patent relates to a process for the production of an oxyarylsulphone, characterized in that 3,4 dichlorodiphenylsulphone is heated with an alkaline agent.



  The 4-oxy-3-chlorodiphenyl sulfone obtained in this way is a colorless body with a melting point of 176 C. It is said to be used as an intermediate product in the manufacture of dyes, medicinal products, textile and tannery auxiliaries and synthetic resins.



       Example: 45.5 parts of 3,4-dichlorodiphenyl sulfone are heated with 19 parts of caustic potash in about 400 parts of water in an autoclave to about 200 ° C. for about 8 hours. Acidification of the resulting solution gives 4-oxy-3-chlorodiphenyl sulfone with a melting point of 176 C.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Oxyyaryl- sulfons, dadurch gekennzeichnet, dass man 3,4-Dichlordiphenylsulfon mit einem alkalisch wirkenden Mittel erhitzt. Das so erhaltene 4-Oxy-3-chlordiphenyl- sulfon ist ein farbloser Körper vom Schmelz punkt<B>176'</B> C. Es soll als Zwischenprodukt zur Herstellung von Farbstoffen, Heilmitteln, Textil- und Gerbereihilfsmitteln sowie von synthetischen Harzen Verwendung finden. PATENT CLAIM: Process for the production of an oxyyaryl sulfone, characterized in that 3,4-dichlorodiphenyl sulfone is heated with an alkaline agent. The 4-oxy-3-chlorodiphenylsulfone obtained in this way is a colorless body with a melting point of <B> 176 '</B> C. It is intended to be used as an intermediate product in the manufacture of dyes, medicinal products, textile and tanning aids and synthetic resins Find.
CH220407D 1939-11-04 1940-10-29 Process for the preparation of an oxyarylsulfone. CH220407A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE220407X 1939-11-04
CH218364T 1940-10-29

Publications (1)

Publication Number Publication Date
CH220407A true CH220407A (en) 1942-03-31

Family

ID=25726143

Family Applications (1)

Application Number Title Priority Date Filing Date
CH220407D CH220407A (en) 1939-11-04 1940-10-29 Process for the preparation of an oxyarylsulfone.

Country Status (1)

Country Link
CH (1) CH220407A (en)

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