CH305322A - Process for the production of a condensation product. - Google Patents

Process for the production of a condensation product.

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Publication number
CH305322A
CH305322A CH305322DA CH305322A CH 305322 A CH305322 A CH 305322A CH 305322D A CH305322D A CH 305322DA CH 305322 A CH305322 A CH 305322A
Authority
CH
Switzerland
Prior art keywords
dichloro
amino
react
allowed
diphenylthioether
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Variapat
Original Assignee
Ag Variapat
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 Ag Variapat filed Critical Ag Variapat
Publication of CH305322A publication Critical patent/CH305322A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C323/00Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
    • C07C323/64Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and sulfur atoms, not being part of thio groups, bound to the same carbon skeleton
    • C07C323/66Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and sulfur atoms, not being part of thio groups, bound to the same carbon skeleton containing sulfur atoms of sulfo, esterified sulfo or halosulfonyl groups, bound to the carbon skeleton

Description

  

  



  Verfahren zur Herstellung eines Kondensationsproduktes.



   Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines   Konden-    sationsproduktes der Formel
EMI1.1     
 dadurch gekennzeichnet, dass man 3,4-Dichloranilin mit einem Halogenkohlensäurederivat reagieren lässt und das erhaltene reaktive Carbaminsäurederivat mit 2-amino-4-trifluor   methyl-3', 4'-dichlor-1, 1'-diphenylthioäther-6'-    sulfonsaurem Natrium umsetzt.



   Eine Ausführungsform des erfindungsgemässen Verfahrens besteht darin, dass man 3,4-Dichloranilin mit Phosgen reagieren lässt und das erhaltene 3,4-Dichlorphenyl-carbaminsäurechlorid mit   2-amino-4-trifluormethyl-    3',   4'-dichlor-: 1, 1'-diphenylthioäther-6'-sulfon-    saurem Natrium umsetzt. Dabei arbeitet man vorzugsweise in Gegenwart einer tertiären Base als Kondensationsmittel. Pyridin oder Chinolin sind für diesen Zweck vor allem geeignet.



   Des weiteren kann man 3,4-Dichloranilin mit Phosgen bei erhöhter Temperatur umsetzen und das erhaltene 3,4-Dichlorphelaylisocyanat mit 2-amino-4-trifluormethyl-3', 4'-di  chlor-1, 1'-diphenylthioäther-6'-sulfonsaurem    Natrium zur Reaktion bringen, wobei man die Verbindung der obigen Formel in guter Ausbeute und vorzüglicher Reinheit erhält. Als Losungsmittel eignet sich für diese Art der Umsetzung vor allem Acetonitril.



   Schliesslich besteht eine Ausführungsform darin, dass man 3,4-Dichloranilin mit einem Halogenkohlensäureester reagieren lässt und den erhaltenen 3,4-Diehlorphenyl-carbaminsäureester mit   2-amino-4-trifluormethyl3',    4'dichlor-l,   l'-diphenylthioäther-6'-slllfonsaurem    Natrium umsetzt.



   Als Halogenkohlensäureester kommen hauptschlich niedere   Alkyl-oder    Arylester in Frage. Der Umsatz kann vorteilhaft in   Was-    ser vorgenommen werden.



   Das neue Kondensationsprodukt bildet ein weisses, in heissem Wasser klar   losliches    Kristallpulver, das als Mottenschutzmittel verwendet werden kann. 



   Beispiel   J      :    a) 480 Teile trockenes Benzol werden bei 70  mit Phosgen gesättigt ; dazu wird unter Rühren und Einleiten von Phosgen eine Lösung von 200 Teilen 3,4-Dichloranilin in 600 Teilen trockenem Benzol bei 65-70  zugetropft. Nach einiger Zeit erhitzt man bis zum   Rückfluss    und leitet so lange Phosgen ein, bis nur noch kleine Mengen des verwendeten Amins   ungelöst    sind. Die benzolische   Losung    wird hierauf filtriert, das Benzol abdestilliert und das 3,4-Dichlorphenylisocyanat fraktioniert.



     Kp i2    : 112 ; F : 42-43  ; Ausbeute : 86 /o der Theorie.    b)    14,66 Teile 2-amino-4-trifluormethyl3',   4'-diehlor-1, 1'-diphenylthioäther-6'-sulfon-    saures Natrium werden in 60 Teilen Aeetonitril gelöst mit 6,26 Teilen 3,4-Dichlorphenylisocyanat versetzt und vier Stunden auf dem Wasserbad erwärmt. Die Reaktionslösung wird filtriert und das Lösungsmittel verdampft.



  Ausbeute 13,5 Teile.



   Beispiel 2:
Das aus Phosgen und 3,4-Dichloranilin in einem trockenen inerten Lösungsmittel hergestellte 3,4-Dichlorphenyl-carbaminsäurechlorid ergibt unter Zusatz von Pyridin als Kondensationsmittel mit 2-amino-4-trifluormethyl  3',    4'-dichlor-1,   1'-diphenylthioäther-6'-sulfon-    saurem Natrium den in Beispiel 1 b)   beschrie-      benen    Harnstoff in befriedigender Ausbeute.



   Beispiel 3 :
Der aus   Chlorkolilensäurephenylester und    3,4-Dichloranilin in trockenem Pyridin hergestellte 3,4-Diehlorphenyl-carbaminsäurephenylester liefert durch Umsetzung mit 2-amino4-trifluormethyl-3',   4'-dichlor-1,      1'-diphenylthio-      ather-6'-sulfonsaurem    Natrium in heissem Wasser den in Beispiel 1 b) beschriebenen Harnstoff. Anstatt des 3,4-Diehlorphenylcarbaminsäurephenylesters kann auch der entsprechende Methylester verwendet werden.



  



  Process for the production of a condensation product.



   The present patent relates to a process for the production of a condensation product of the formula
EMI1.1
 characterized in that 3,4-dichloroaniline is allowed to react with a halogenated carbonic acid derivative and the reactive carbamic acid derivative obtained is reacted with 2-amino-4-trifluoro methyl-3 ', 4'-dichloro-1, 1'-diphenylthioether-6'-sulfonic acid sodium implements.



   One embodiment of the process according to the invention consists in allowing 3,4-dichloroaniline to react with phosgene and the 3,4-dichlorophenyl-carbamic acid chloride obtained with 2-amino-4-trifluoromethyl-3 ', 4'-dichloro: 1,1 '-diphenylthioether-6'-sulfonic acid sodium converts. It is preferable to work in the presence of a tertiary base as the condensing agent. Pyridine or quinoline are particularly suitable for this purpose.



   Furthermore, 3,4-dichloroaniline can be reacted with phosgene at elevated temperature and the 3,4-dichlorophelayl isocyanate obtained with 2-amino-4-trifluoromethyl-3 ', 4'-dichloro-1, 1'-diphenylthioether-6' bring sodium sulfonic acid to the reaction, the compound of the above formula being obtained in good yield and excellent purity. A particularly suitable solvent for this type of reaction is acetonitrile.



   Finally, in one embodiment, 3,4-dichloroaniline is allowed to react with a halocarbonic acid ester and the 3,4-diehlophenyl-carbamic acid ester obtained is allowed to react with 2-amino-4-trifluoromethyl3 ', 4'-dichloro-l, l'-diphenylthioether-6 '-slllfonsaurem sodium converts.



   Mainly lower alkyl or aryl esters are suitable as halocarbonic acid esters. The conversion can advantageously be carried out in water.



   The new condensation product forms a white crystal powder that is clearly soluble in hot water, which can be used as a moth repellent.



   Example J: a) 480 parts of dry benzene are saturated at 70 with phosgene; to this end, a solution of 200 parts of 3,4-dichloroaniline in 600 parts of dry benzene at 65-70 is added dropwise with stirring and introduction of phosgene. After some time, the mixture is heated to reflux and phosgene is passed in until only small amounts of the amine used are undissolved. The benzene solution is then filtered, the benzene is distilled off and the 3,4-dichlorophenyl isocyanate is fractionated.



     Kp i2: 112; F: 42-43; Yield: 86 / o of theory. b) 14.66 parts of 2-amino-4-trifluoromethyl3 ', 4'-diehlor-1, 1'-diphenylthioether-6'-sulfonic acid sodium are dissolved in 60 parts of eetonitrile with 6.26 parts of 3,4-dichlorophenyl isocyanate added and heated for four hours on the water bath. The reaction solution is filtered and the solvent is evaporated.



  Yield 13.5 parts.



   Example 2:
The 3,4-dichlorophenyl-carbamic acid chloride prepared from phosgene and 3,4-dichloroaniline in a dry inert solvent gives with the addition of pyridine as a condensing agent with 2-amino-4-trifluoromethyl 3 ', 4'-dichloro-1, 1'- sodium diphenylthioether-6'-sulfonic acid, the urea described in Example 1 b) in a satisfactory yield.



   Example 3:
The 3,4-diehlophenyl-carbamic acid phenyl ester prepared from chlorocolylenic acid phenyl ester and 3,4-dichloroaniline in dry pyridine gives by reaction with 2-amino4-trifluoromethyl-3 ', 4'-dichloro-1, 1'-diphenylthioether-6'- sulfonic acid sodium in hot water the urea described in Example 1 b). The corresponding methyl ester can also be used instead of the phenyl 3,4-di-chlorophenylcarbamate.

 

Claims (1)

PATENTANSPRUCH : Verfahren zur Herstellung eines Konden- sationsproduktes der Formel EMI2.1 dadurch gekennzeichnet, dass man 3,4-Diehloranilin mit einem Halogenkohlensäurederivat reagieren lässt und das erhaltene reaktive Carbaminsäurederivat mit 2-amino-4-trifluor methyl-3', 4'-dichlor-1, l'-diphenylthioäther-6'- sulfonsaurem Natrium umsetzt. PATENT CLAIM: Process for the preparation of a condensation product of the formula EMI2.1 characterized in that 3,4-diehloraniline is allowed to react with a halocarbonic acid derivative and the reactive carbamic acid derivative obtained is reacted with 2-amino-4-trifluoro methyl-3 ', 4'-dichloro-1, l'-diphenylthioether-6'-sulfonic acid sodium implements. Das neue Kondensationsprodukt bildet ein schönes, weisses, in heissem Wasser klar los- liches Kristallplllver, das als Mottenschutz- mittel verwendet werden kann. The new condensation product forms a beautiful, white crystal powder that dissolves clearly in hot water and can be used as a moth repellent. UNTERANSPRUCHE : l. Verfahren gemäss Patentanspruch, dadurch gekennzeichnet, dass man 3,4-Dichloranilin mit Phosgen reagieren lässt und das erhaltene 3,4-Dichlorphenyl-carbaminsäurechlorid mit 2-amino-4-trifluormethyl-3', 4'-dichlor-1, 1'-diphenylthioäther-6'-sulfonsaurem Natrium umsetzt. SUBClaims: l. A process according to claim, characterized in that 3,4-dichloroaniline is allowed to react with phosgene and the 3,4-dichlorophenyl-carbamic acid chloride obtained is treated with 2-amino-4-trifluoromethyl-3 ', 4'-dichloro-1, 1'- diphenylthioether-6'-sulfonic acid sodium converts. 2. Verfahren gemäss Patentanspruch, dadurch gekennzeichnet, dass man 3,4-Dichloranilin mit Phosgen bei erhöhter Temperatur reagieren lässt und das erhaltene 3,4-Dichlorphenylisocyanat mit 2-amino-4-trifluormethyl 3', 4'-dichlor-1, 1'-diphenylthioäther-6'-sulfon- saurem Natrium umsetzt. 2. The method according to claim, characterized in that 3,4-dichloroaniline is allowed to react with phosgene at elevated temperature and the 3,4-dichlorophenyl isocyanate obtained with 2-amino-4-trifluoromethyl 3 ', 4'-dichloro-1, 1 '-diphenylthioether-6'-sulfonic acid sodium converts. 3. Verfahren gemass Patentanspruch, dadurch gekennzeichnet, dass man 3,4-Dichloranilin mit einem Halogenkohlensäureester reagieren lässt und den erhaltenen 3,4-Dichlorphenyl-carbaminsäureester mit 2-amino-4-tri Fluormethyl-3'-4'-dichlor-1, 1'- diphenylthio äther-6'-sulfonsaurem Natrium umsetzt. 3. The method according to claim, characterized in that 3,4-dichloroaniline is allowed to react with a halocarbonic acid ester and the 3,4-dichlorophenyl-carbamic acid ester obtained is reacted with 2-amino-4-trifluoromethyl-3'-4'-dichloro-1 , 1'-diphenylthio ether-6'-sulfonic acid sodium converts.
CH305322D 1950-04-29 1950-04-29 Process for the production of a condensation product. CH305322A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH305322T 1950-04-29
CH300283T 1950-12-26

Publications (1)

Publication Number Publication Date
CH305322A true CH305322A (en) 1955-02-15

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ID=25734206

Family Applications (1)

Application Number Title Priority Date Filing Date
CH305322D CH305322A (en) 1950-04-29 1950-04-29 Process for the production of a condensation product.

Country Status (1)

Country Link
CH (1) CH305322A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0765305A1 (en) * 1994-06-02 1997-04-02 Smithkline Beecham Corporation Anti-inflammatory compounds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0765305A1 (en) * 1994-06-02 1997-04-02 Smithkline Beecham Corporation Anti-inflammatory compounds
EP0765305A4 (en) * 1994-06-02 1997-09-03 Smithkline Beecham Corp Anti-inflammatory compounds

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