CH297402A - Process for the preparation of a vinyl sulfone. - Google Patents

Process for the preparation of a vinyl sulfone.

Info

Publication number
CH297402A
CH297402A CH297402DA CH297402A CH 297402 A CH297402 A CH 297402A CH 297402D A CH297402D A CH 297402DA CH 297402 A CH297402 A CH 297402A
Authority
CH
Switzerland
Prior art keywords
vinyl sulfone
sulfone
preparation
sulfuric acid
vinyl
Prior art date
Application number
Other languages
German (de)
Inventor
Farbwerke Hoechst Akt Bruening
Original Assignee
Hoechst 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 Hoechst Ag filed Critical Hoechst Ag
Publication of CH297402A publication Critical patent/CH297402A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C317/00Sulfones; Sulfoxides
    • C07C317/14Sulfones; Sulfoxides having sulfone or sulfoxide groups bound to carbon atoms of six-membered aromatic rings

Landscapes

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

Description

  

  Verfahren zur Darstellung eines     Vinylsulfons.       Es ist. bekannt,     Vinylsulfone    dadurch her  zustellen, dass man     Vinylstilfide    der Formel       CH,=CII-S-R,    worin R ein     aliphatischer,          eyeloalipha.tiseher,    aromatischer oder gemisch  ter Rest     gesättigter    oder     ungesättigter    Art  sein kann,     -unter    milden Bedingungen mit       Sauerstoff    abgebenden Mitteln behandelt.  



  Es     wurde    nun gefunden, dass man     Vinyl-          sulfone    in technisch einfacher     'VV    eise und mit.  guten bis sehr guten Ausbeuten erhalten kann,  wenn man     ss-Oxäthylsulfone    der allgemeinen  Formel         HO-CH,-CH,-SO,-R,       worin R einen     aliphatisehen    oder aromatischen  Rest. bedeutet, in Gegenwart.

   oder     Abwesen-          lieit    von     indifferenten    organischen     Lösungs-          niitteln    in ihre     Sehwefelsä.ureester    überführt       und    diese mit Alkalien behandelt..  



  Die als     Au@sgangsstoffe    verwendeten     ss-          >xiithyls-ulfone    .können z. ss. durch Erhitzen  der entsprechenden     sulfinsauren    Salze mit       ss-('hloräthylalkohol    gewonnen werden.  



       Gegenstand    des Patentes ist ein Verfahren  zur     Herstellung    eines     Vinylsulfons,    das da   < Inreh     ,@ekennzeiehnet    ist, dass man     ss-Oxäthyl-          phenylsulfon    in Abwesenheit von indifferen  ten organischen Lösungsmitteln in seinen       Schwefelsä.ureester    überführt. und diesen mit  Alkalien behandelt.  



  Das so erhaltene     Vinylphenylsulfon    ist, in  der Literatur noch nicht     beschrieben    und bil-         det    bei Raumtemperatur farblose Kristalle,  es ist in Wasser unlöslich und kristallisiert  aus     Tetrachlorkohlenstoff    in feinen, bei 72   schmelzenden Nadeln. Es lässt sich     mischpoly-          merisieren,        ist    äusserst additionsfähig und       lässt    sich zur Herstellung von Zwischenpro  dukten für Farbstoffe und zur Herstellung  von     Poly        merisaten    verwenden.

      <I>Beispiel:</I>  279     Gewichtsteile        ss-Oxäthylphenylsulfon     werden bei 50-70  in etwa 210     Vofumteilen     100%     ige    Schwefelsäure eingerührt. Man rührt  eine Stunde bei derselben Temperatur nach  und giesst das Gemisch nach dem Abkühlen  auf Eiswasser. Die klare Lösung des gebilde  ten     Sehwefelsäureesters    wird bei Raumtempe  ratur mit Natronlauge schwach alkalisch ge  stellt. Das     Vinylphenylsulfon    fällt dabei sofort  vollkommen farblos aus.

   Nach halbstündigem  Rühren mit verdünntem Alkali wird abge  saugt und das Filtergut mit Wasser     ausge-          wasehen.    Das in einer Ausbeute von 230  Gewichtsteilen erhaltene     Vinylphenylsulfon          schmilzt    als Rohprodukt bei 71-72  und  nach dem     Umlösen    aus     Tetrachlorkohlenst.off     bei 72 .



  Process for the preparation of a vinyl sulfone. It is. known to produce vinyl sulfones by treating vinyl stilfides of the formula CH, = CII-S-R, where R is an aliphatic, eyeloalipha.tiseher, aromatic or mixed radical of a saturated or unsaturated type, -under mild conditions with oxygen-releasing agents.



  It has now been found that vinyl sulfones can be obtained in a technically simple manner and with. good to very good yields can be obtained if β-oxethylsulfones of the general formula HO-CH, -CH, -SO, -R, in which R is an aliphatic or aromatic radical, in the presence.

   or the absence of indifferent organic solvents converted into their sulfuric acid esters and treated with alkalis.



  The ss-> xiithyls-sulfones used as starting materials can z. ss. can be obtained by heating the corresponding sulfinic acid salts with ss - ('chloroethyl alcohol.



       The subject of the patent is a process for the production of a vinyl sulfone, which is because <Inreh, @ ekennzeiehnet that one converts ss-Oxäthylphenylsulfon in the absence of indifferent organic solvents in its sulfuric acid ester. and treated it with alkalis.



  The vinylphenyl sulfone obtained in this way has not yet been described in the literature and forms colorless crystals at room temperature, it is insoluble in water and crystallizes from carbon tetrachloride in fine needles which melt at 72. It can be copolymerized, is extremely capable of addition, and can be used to manufacture intermediate products for dyes and for the manufacture of polymers.

      <I> Example: </I> 279 parts by weight of ß-oxethylphenylsulfone are stirred in at 50-70 in about 210 parts by weight of 100% sulfuric acid. The mixture is stirred for one hour at the same temperature and, after cooling, the mixture is poured onto ice water. The clear solution of the sulfuric acid ester formed is made slightly alkaline with sodium hydroxide solution at room temperature. The vinylphenyl sulfone immediately precipitates out completely colorless.

   After stirring for half an hour with dilute alkali, suction is carried out and the filter material is washed out with water. The vinylphenylsulfone obtained in a yield of 230 parts by weight melts as a crude product at 71-72 and after dissolving from carbon tetrachloride at 72.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines Vinyl- sulfons, dadurch gekennzeichnet, da.ss man ss-Oxäth@#lpheny lsiilfon in Abwesenheit von indifferenten organisehen Lösungsmitteln in seinen Sehwefelsäureester überführt und diesen mit Alkalien behandelt. PATENT CLAIM Process for the production of a vinyl sulfone, characterized in that ss-Oxäth @ # lpheny lsilfon in the absence of inert organic solvents is converted into its sulfuric acid ester and this is treated with alkalis. Das so erhaltene neue Vinylphenylsulfon bildet bei Raumtemperatur farblose Kristalle, ist in Wasser unlöslieh und kristallisiert aus Tetraehlorkohlenstoff in feinen, bei 72 sehmel- zenden Nadeln. The new vinylphenyl sulfone obtained in this way forms colorless crystals at room temperature, is insoluble in water and crystallizes from carbon tetrahalide in fine needles that tend to melt at 72.
CH297402D 1942-01-08 1943-10-15 Process for the preparation of a vinyl sulfone. CH297402A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE297402X 1942-01-08

Publications (1)

Publication Number Publication Date
CH297402A true CH297402A (en) 1954-03-31

Family

ID=6090671

Family Applications (1)

Application Number Title Priority Date Filing Date
CH297402D CH297402A (en) 1942-01-08 1943-10-15 Process for the preparation of a vinyl sulfone.

Country Status (1)

Country Link
CH (1) CH297402A (en)

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