CH104928A - Process for the production of a thionaphthisatin. - Google Patents

Process for the production of a thionaphthisatin.

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Publication number
CH104928A
CH104928A CH104928DA CH104928A CH 104928 A CH104928 A CH 104928A CH 104928D A CH104928D A CH 104928DA CH 104928 A CH104928 A CH 104928A
Authority
CH
Switzerland
Prior art keywords
thionaphthisatin
chloro
production
condensation
oxalyl chloride
Prior art date
Application number
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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 CH104928A publication Critical patent/CH104928A/en

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Description

  

  \erfahren zur Herstellung eines     Thionaphthisatins.       Es wurde gefunden, dass man ein neues     Thio-          naplithisatin,    das     8-Clilör-2#        1-thionaphthisatin     erhält, wenn man auf     8-Chlor-2-thionaph-          thol        Oxalylchlorideinwirken    lässt, gegebenen  falls unter Zusatz eines Kondensationsmittels.  



  Das     8-Chlor-2-        1-thionaphthisatin    bildet ein  rotes Pulver, nach einmaligem     Unfösen    aus  Benzol erhält man Kristalle vom     Sp.    207  .  <I>Beispiel:</I>       194,5    Teile     8-Chlor-2-tliioiiaphthol    (farb  lose Nadeln vom     Sp.        50-51 )    werden unter  Rühren bei 0 -10   in etwa 600 Teile     Oxalyl-          ehlorid    eingetragen und 20 Stunden bei ge  wöhnlicher Temperatur gerührt.

   Hierauf wird  das überschüssige     Oxalylchlorid        abdestilliert     und der Rückstand, nach Zugabe von 1000  Teilen     Schwefelkohlenstoff,    unter Rühren     in-          nert    einer Stunde mit 250 Teilen Aluminium  Chlorid versetzt, wobei die Temperatur bei       0-100    gehalten wird. Man rührt nun noch  längere Zeit bei     gewöhnlicher    Temperatur,       erwärmt    dann langsam bis zum Sieden des  Schwefelkohlenstoffes und belässt eine Stunde  bei dieser Temperatur. plan trägt dann das  Reaktionsprodukt in salzsäurehaltiges Wasser  aus.

   Nach dem Abtreiben des Schwefelkohlen-         stoffes    wird filtriert und der Rückstand mit  verdünnter     Sodalösung    bei 50-60   ausgezo  gen ; aus der     Sodalösung    wird das     8-Chlor-          2#1-thionaphthisatin    durch Salzsäure gefällt.



  \ experienced in the production of a thionaphthisatin. It has been found that a new thio-naplithisatin, the 8-Clilör-2 # 1-thionaphthisatin, is obtained when 8-chloro-2-thionaphthol oxalyl chloride is allowed to act, if necessary with the addition of a condensing agent.



  The 8-chloro-2- 1-thionaphthisatin forms a red powder, after a single dissolving of benzene, crystals of Sp. 207 are obtained. <I> Example: </I> 194.5 parts of 8-chloro-2-tliioiiaphthol (colorless needles from Sp. 50-51) are added to about 600 parts of oxalyl chloride with stirring at 0-10 and added for 20 hours ge ordinary temperature stirred.

   The excess oxalyl chloride is then distilled off and, after the addition of 1000 parts of carbon disulfide, 250 parts of aluminum chloride are added with stirring over the course of one hour, the temperature being kept at 0-100. The mixture is then stirred for a longer time at the usual temperature, then slowly warmed to the boiling point of the carbon disulfide and left at this temperature for an hour. plan then carries out the reaction product in water containing hydrochloric acid.

   After the carbon disulfide has been driven off, it is filtered and the residue is extracted with dilute soda solution at 50-60; The 8-chloro-2 # 1-thionaphthisatin is precipitated from the soda solution using hydrochloric acid.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines Thionaph- thisatins, des 8-Chlor-2#1-thionaphthisatins, dadurch gekennzeichnet, dass man auf 8-Chlor- 2-thionaphtliol Oxalylchlorid einwirken lässt. Das 8-Chlor-2 # 1-thionaphthisatin bildet ein rotes Pulver, nach einmaligem Umlösen aus Benzol erhält man Kristalle vom Sp. 207 . UNTERANSPRüCHE: 1. PATENT CLAIM Process for the production of a thionaphthisatin, 8-chloro-2 # 1-thionaphthisatins, characterized in that oxalyl chloride is allowed to act on 8-chloro-2-thionaphthiol. The 8-chloro-2 # 1-thionaphthisatin forms a red powder, after being dissolved once from benzene crystals of Sp. 207 are obtained. SUBCLAIMS: 1. Verfahren nach Patentanspruch, dadurch gekennzeichet, dass man die Kondensation in Gegenwart eines Kondensationsmittels vornimmt. 2. Verfahren nach Patentanspruch und Unter anspruch 1, dadurch gekennzeichnet, dass Aluminiumehlorid als Kondensationsmittel gewählt wird. Process according to patent claim, characterized in that the condensation is carried out in the presence of a condensing agent. 2. The method according to claim and sub-claim 1, characterized in that aluminum chloride is chosen as the condensation agent.
CH104928D 1922-12-02 1922-12-02 Process for the production of a thionaphthisatin. CH104928A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH102033T 1922-12-02
CH104928T 1922-12-02

Publications (1)

Publication Number Publication Date
CH104928A true CH104928A (en) 1924-05-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CH104928D CH104928A (en) 1922-12-02 1922-12-02 Process for the production of a thionaphthisatin.

Country Status (1)

Country Link
CH (1) CH104928A (en)

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