CH201504A - Process for the preparation of a sulfonic acid chloride. - Google Patents

Process for the preparation of a sulfonic acid chloride.

Info

Publication number
CH201504A
CH201504A CH201504DA CH201504A CH 201504 A CH201504 A CH 201504A CH 201504D A CH201504D A CH 201504DA CH 201504 A CH201504 A CH 201504A
Authority
CH
Switzerland
Prior art keywords
acid chloride
sulfonic acid
preparation
chlorobenzene
ethylsulfone
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH201504A publication Critical patent/CH201504A/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     Sulfonsäurechlorids.       Es wurde gefunden, dass man in glatter  Reaktion das     1-Chlorbenzol-4-äthylsulfon-2-          sulforisäurechlorid    erhält, wenn man auf     1-          Chlorbenzol-4-äthylsulfon    in der Wärme       Chlorsulfonsäure    einwirken lässt. Das     1-Chlor-          benzol-4-äthylsulfon-2-sulfonsäurechlorid    bil  det ein weisses Pulver, das sich in organischen  Lösungsmitteln, wie z. B. in Benzol, löst.  Es ist ein wertvolles Zwischenprodukt zur  Herstellung von Farbstoffen.  



  <I>Beispiel:</I>  30 Teile     1-Chlorbenzol-4-äthylsulfon    wer  den in 300 Teilen     Chlorsulfonsäure    eingetragen  und langsam erwärmt. Bei etwa 90   beginnt  bereits die     Salzsäureentwicklung,    die durch  Steigern der Temperatur bis gegen 1401  innert etwa 4 Stunden beendet wird. Durch  Eingiessen der erkalteten Masse in Eiswasser    erhält man ein festes Produkt, das zur Haupt  aache aus dem     1-Chlorbenzol-4-äthylsulfon-2-          sulfonsäurechlorid    besteht. Es kann gegebe  nenfalls durch Kristallisieren aus Benzol,  eventuell in Gemisch mit andern     Kohlen-          wasserstoffen,    gereinigt werden. .



  Process for the preparation of a sulfonic acid chloride. It has been found that 1-chlorobenzene-4-ethylsulphone-2-sulforic acid chloride is obtained in a smooth reaction if chlorosulphonic acid is allowed to act on 1-chlorobenzene-4-ethylsulphone in the heat. The 1-chloro-benzene-4-ethylsulfone-2-sulfonic acid chloride bil det a white powder that is in organic solvents, such as. B. in benzene, dissolves. It is a valuable intermediate in the manufacture of dyes.



  <I> Example: </I> 30 parts of 1-chlorobenzene-4-ethylsulfone are added to 300 parts of chlorosulfonic acid and slowly heated. The evolution of hydrochloric acid begins at around 90 and is terminated within around 4 hours by increasing the temperature up to 1401. By pouring the cooled mass into ice water, a solid product is obtained which mainly consists of 1-chlorobenzene-4-ethylsulfone-2-sulfonic acid chloride. If necessary, it can be purified by crystallizing it from benzene, possibly in a mixture with other hydrocarbons. .

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Sulfon- säurechlorids, dadurch gekennzeichnet, dass man auf 1-Chloi-benzol-4-äthylsulfon in der Wärme Chlorsulfonsäure einwirken lässt. Das 1-Chlorbenzol -4-äthylsulfon - 2-sulfonsäure- chlorid bildet ein weisses Pulver, das sich in organischen Lösungsmitteln, wie zum Beispiel in Benzol, löst. Er ist ein wertvolles Zwi schenprodukt zur Herstellung von Farbstoffen. PATENT CLAIM: Process for the production of a sulfonic acid chloride, characterized in that 1-chlorobenzene-4-ethyl sulfone is allowed to act with chlorosulfonic acid in the heat. 1-chlorobenzene -4-ethylsulfone - 2-sulfonic acid chloride forms a white powder that dissolves in organic solvents such as benzene. It is a valuable intermediate product in the manufacture of dyes.
CH201504D 1936-08-28 1936-08-28 Process for the preparation of a sulfonic acid chloride. CH201504A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH201504T 1936-08-28
CH195650T 1936-08-28

Publications (1)

Publication Number Publication Date
CH201504A true CH201504A (en) 1938-11-30

Family

ID=25722770

Family Applications (1)

Application Number Title Priority Date Filing Date
CH201504D CH201504A (en) 1936-08-28 1936-08-28 Process for the preparation of a sulfonic acid chloride.

Country Status (1)

Country Link
CH (1) CH201504A (en)

Similar Documents

Publication Publication Date Title
CH195650A (en) Process for the preparation of a disulfonic acid chloride.
CH220928A (en) Process for the preparation of a reactive chlorine-containing isatin compound.
CH187896A (en) Process for the preparation of mono-para-bromobenzoyl pyrene.
CH163888A (en) Process for preparing an acylaminosulfonic acid chloride of the benzene series.
CH167374A (en) Process for the production of a new textile auxiliary.
CH291816A (en) Process for the preparation of a new dye of the phthalocyanine series.
CH192753A (en) Process for the preparation of an oxycarbazole carboxylic acid aryl amide.
CH223069A (en) Process for the production of aromatic sulfones.
CH120702A (en) Process for the preparation of Bz2, Bz2&#39;-dimethoxy-Bz1, Bz1&#39;-benzanthronyl sulfide.
CH218265A (en) Process for the preparation of an ester-like condensation product.
CH147336A (en) Process for the preparation of a sulfonic acid chloride.
CH161225A (en) Process for the preparation of 9-phenyl-2-oxycarbazole-3-carboxylic acid.
CH139395A (en) Process for the production of a sulfur dye.
CH170310A (en) Process for the preparation of an oxycarbazole carboxylic acid arylamide.
CH236918A (en) Process for the preparation of a quaternary ammonium salt.
CH156927A (en) Process for the preparation of a naphthalene series oxythionaphthene.
CH161737A (en) Process for the preparation of 2-perhydrocarbazylethylaminopyridine.
CH167375A (en) Process for the production of a new textile auxiliary.
CH188318A (en) Process for the preparation of a new sulfonic acid.
CH167378A (en) Process for the preparation of 1-acetylamino-2-methyl-4-chlorobenzene-5-sulfonic acid chloride.
CH191418A (en) Process for the preparation of 4&#39;-oxyphenyl-4-aminopyrene.
CH206098A (en) Process for the production of an aminoarylsulfone.
CH170317A (en) Process for the preparation of an oxycarbazole carboxylic acid arylamide.
CH167379A (en) Process for the preparation of 1-acetylamino-2-methyl-4-chlorobenzene-5-sulfonic acid chloride.
CH200923A (en) Process for the production of a condensation product.