CH305314A - Process for the production of a condensation product. - Google Patents

Process for the production of a condensation product.

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Publication number
CH305314A
CH305314A CH305314DA CH305314A CH 305314 A CH305314 A CH 305314A CH 305314D A CH305314D A CH 305314DA CH 305314 A CH305314 A CH 305314A
Authority
CH
Switzerland
Prior art keywords
amino
diphenyl ether
chloro
trifluoromethyl
dichloro
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 CH305314A publication Critical patent/CH305314A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00Sulfonic acids; Halides, esters, or anhydrides thereof
    • C07C309/01Sulfonic acids
    • C07C309/28Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C309/41Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing singly-bound oxygen atoms bound to the carbon skeleton
    • C07C309/42Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing singly-bound oxygen atoms bound to the carbon skeleton having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings

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

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 4-Trifluor  methTl-4'-chlor-2-amino-1, 1'-diphenyläther    mit einem Halogenkohlensäurederivat reagieren lässt und das erhaltene reaktive Carbaminsäurederivat mit 2-amino-4, 4'-dichlor-1, 1'-diphenyläther-2'-sulfonsaurem Natrium umsetzt.



   Eine Ausführungsform des erfindungsgemässen Verfahrens besteht darin, dass man 4    Trifliormethyl-4'-chlor-2-amino-1,    1'-diphenyl äther mit Phosgen reagieren lässt und das erhaltene 4-Trifluormethyl-4'-chlor-diphenyl  äther-2-carbaminsäurechlorid    mit 2-amino-4, 4'  dichlor-1,      1'-diphenyläther-2'-sulfonsaurem    Na  trium    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 4-Trifluormethyl  4'-chlor-2-amino-1,      1'-diphenyläther    und Phosgen bei erhöhter Temperatur reagieren lassen und das erhaltene   4-Trifluormethyl-4'-chlor-      diphenyläther-2-isocyanat    mit 2-amino-4, 4'dichlor-1,   1'-diphenyläther-2'-sulfonsaurem    Natrium zur Reaktion bringen, wobei man die Verbindung der obigen Formel in guter Ausbeute und vorziiglicher Reinheit erhält. Als   Losungsmittel    eignet sich für diese Art der Umsetzung vor allem Acetonitril oder Pyridin.



   SchlieBlieh besteht eine Ausführungsform darin, dass man   4-Trifluormethyl-4'-chlor-2-      amino-1,    1'-diphenylÏther mit einem Halogenkohlensäureester reagieren lässt und den erhaltenen   4-Trifluormethyl-4'-ehlor-diphenyl-      äther-2-carbaminsäureester    mit 2-amino-4, 4'  diehlor-1, l'-diphenyläther-2'-sulfonsaurem    Natrium umsetzt.   



   Als Halogenkohlensäureester kommenhaupt-    schlich niedere Alkyl-oder Arylester in Frage. Der Umsatz kann vorteilhaft in Wasser vorgenommen werden.



   Das neue Kondensationsprodukt bildet ein helles, in heissem Wasser klar   losliches    Kri  stallpulver,    das als Mottenschutzmittel verwendet werden kann. 



   Beispiel 1 : a) 300 Teile trockenes Benzol werden bei 70  mit Phosgen gesättigt ; dazu wird. unter Rühren und Einleiten von Phosgen eine Losung von 33 Teilen   4-Trifluormethyl-4'-chlor-    2-amino-1, 1'-diphenyläther in 300 Teilen trokkenem Benzol bei 65-70  zugetropft. Naeli einiger Zeit erhitzt man bis zum   Rüekfluss    und leitet so lange Phosgen ein, bis nur noch kleine Mengen des verwendeten Amins   ungelöst    sind.



  Die   benzolische    Lösung wird hierauf filtriert, das Benzol abdestilliert und das 4-Trifluormethyl-4'-chlor-diphenylÏther-2-isocyanat fraktioniert.



     KPoos 105108     ; Ausbeute 34 Teile. b) 11, 9 Teile 2-amino-4, 4'-dichlor-1,   1'-di-    phenyläther-2'-sulfonsaures Natrium werden in 150 Teilen trockenem Acetonitril gelost, mit   10,    45 Teilen 4-Trifluormethyl-4'-ehlor-diphe  nyläther-2-isocyanat versetzt und    vier Stunden auf dem Wasserbad erwärmt. Die Reak  tionslosung    wird filtriert und das   Lösungs-    mittel verdampft. Ausbeute 20 Teile. Das neue Kondensationsprodukt bildet nach dem Trocknen und Mahlen ein helles, in heissem Wasser klar lösliches Pulver.



   Beispiel 2 :
Das aus Phosgen und 4-Trifluormethyl-4'  ehlor-2-amino-], 1'-diphenyläther    in einem trockenen inerten Lösungsmittel   hergestellte 4-      
Trifluorinethyl-4'-chlor-diphenyläther-2-carb-    aminsäurechlorid ergibt unter Zusatz von Pyridin als Kondensationsmittel mit 2-amino4, 4'-dichlor-1,   1'-diphenyläther-2'-sulfonsaurem    Natrium den in Beispiel 1 b)   besehriebenen    Harnstoff in befriedigender Ausbeute.



   Beispiel 3 :
Der aus Chlorkohlensäurephenylester und    4-Trifluormethyl-4'-chlor-2-amino-1,    1'-diphenyläther in trocken. em Pyridin hergestellte 4
Trifluormethyl-4'-chlor-diphenyläther-2-carbaminsäurephenylester liefert   durch Umset-    zung mit 2-amino-4,   4'-dichlor-1,      1'-diphenyl-    äther-2'-sulfonsaurem Natrium in heissem Wasser den in Beispiel 1b) beschriebenen Harnstoff. Anstatt des 4-Trifluormethyl-4'   chlor-diphenyläther-2-carbaminsäurephenyl-    esters kann auch der entsprechende   Methyl-    ester 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 4-trifluoro methTl-4'-chloro-2-amino-1, 1'-diphenyl ether is allowed to react with a halocarbonic acid derivative and the reactive carbamic acid derivative obtained is reacted with 2-amino-4, 4'-dichloro-1, 1 '-diphenylether-2'-sulfonic acid sodium converts.



   One embodiment of the process according to the invention consists in allowing 4-trifluoromethyl-4'-chloro-2-amino-1, 1'-diphenyl ether to react with phosgene and the 4-trifluoromethyl-4'-chloro-diphenyl ether-2- carbamic acid chloride with 2-amino-4, 4 'dichloro-1, 1'-diphenylether-2'-sulfonic acid Na trium implemented. 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, 4-trifluoromethyl-4'-chloro-2-amino-1, 1'-diphenyl ether and phosgene can be allowed to react at elevated temperature and the 4-trifluoromethyl-4'-chlorodiphenyl ether-2-isocyanate obtained can be reacted with 2-amino Bring -4, 4'-dichloro-1, 1'-diphenylether-2'-sulfonic acid sodium to the reaction, whereby the compound of the above formula is obtained in good yield and excellent purity. Acetonitrile or pyridine are particularly suitable as solvents for this type of reaction.



   Finally, one embodiment consists in allowing 4-trifluoromethyl-4'-chloro-2-amino-1, 1'-diphenyl ether to react with a halocarbon ester and the 4-trifluoromethyl-4'-chloro-diphenyl ether-2- carbamic acid ester with 2-amino-4, 4 'diehlor-1, l'-diphenyl ether-2'-sulfonic acid sodium.



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



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



   Example 1: a) 300 parts of dry benzene are saturated with phosgene at 70; this becomes. while stirring and passing in phosgene, a solution of 33 parts of 4-trifluoromethyl-4'-chloro-2-amino-1,1'-diphenyl ether in 300 parts of dry benzene at 65-70 was added dropwise. Naeli is heated up to the reflux for a while and phosgene is introduced until only small amounts of the amine used are undissolved.



  The benzene solution is then filtered, the benzene is distilled off and the 4-trifluoromethyl-4'-chloro-diphenyl ether-2-isocyanate is fractionated.



     KPoos 105108; Yield 34 parts. b) 11.9 parts of 2-amino-4, 4'-dichloro-1, 1'-diphenyl ether-2'-sulfonic acid sodium are dissolved in 150 parts of dry acetonitrile, with 10.45 parts of 4-trifluoromethyl-4 ' -ehlor-diphe nylether-2-isocyanate added and heated for four hours on the water bath. The reaction solution is filtered and the solvent is evaporated. Yield 20 parts. After drying and grinding, the new condensation product forms a pale powder that is clearly soluble in hot water.



   Example 2:
The prepared from phosgene and 4-trifluoromethyl-4 'ehlor-2-amino-], 1'-diphenyl ether in a dry inert solvent 4-
Trifluorinethyl-4'-chloro-diphenylether-2-carbamic acid chloride, with the addition of pyridine as a condensing agent with 2-amino4, 4'-dichloro-1, 1'-diphenylether-2'-sulfonic acid sodium, gives the described in Example 1 b) Urea in a satisfactory yield.



   Example 3:
The from chlorocarbonic acid phenyl ester and 4-trifluoromethyl-4'-chloro-2-amino-1, 1'-diphenyl ether in dry. 4 produced in pyridine
Trifluoromethyl-4'-chloro-diphenyl ether-2-carbamic acid phenyl ester gives by reaction with 2-amino-4, 4'-dichloro-1, 1'-diphenyl-ether-2'-sulfonic acid sodium in hot water that in Example 1b ) described urea. Instead of the 4-trifluoromethyl-4'-chlorodiphenyl ether-2-carbamic acid phenyl ester, the corresponding methyl ester can also be used.

 

Claims (1)

PATENTANSPRUCH : Verfahren zur Herstellung eines Konden- sationsproduktes der Formel EMI2.1 dadurch gekennzeichnet, dass man 4-Trifluormethyl-4'-chlor-2-amino-1,1'-diphenylÏther mit einem Halogenkohlensäurederivat reagieren lässt und das erhaltene reaktive Carbaminsäurederivat mit 2-amino-4, 4'-dichlor-1, 1'-diphenyläther-2'-sulfonsaurem Natrium umsetzt. PATENT CLAIM: Process for the preparation of a condensation product of the formula EMI2.1 characterized in that 4-trifluoromethyl-4'-chloro-2-amino-1,1'-diphenylÏther is allowed to react with a halogenated carbonic acid derivative and the reactive carbamic acid derivative obtained is reacted with 2-amino-4, 4'-dichloro-1, 1 ' -diphenylether-2'-sulfonic acid sodium converts. Das neue Kondensationsprodulit bildet ein schönes, helles, in heissem Wasser klar l¯sliches Kristallpulver, das als Mottenschutz- mittel verwendet werden kann. The new condensation product forms a beautiful, light-colored crystal powder that is clearly soluble in hot water and can be used as a moth repellent. UNTERANSPRUCHE : 1. Verfahren gemäss Patentanspruch, dadurch gekennzeichnet, dass man 4-Trifluor methyl-4'-ehlor-2-amino-1, 1'-diphenyläther mit Phosgen umsetzt und das erhaltene 4-Trifluor methyl-4'-chlordiphenyläther-2-carbaminsäure- chlorid mit 2-amino-4, 4'-dichlor-1, 1'-diphenyl- ather-2'-sulfonsa. urem Natrium umsetzt. SUBClaims: 1. The method according to claim, characterized in that 4-trifluoro methyl-4'-chloro-2-amino-1,1'-diphenyl ether is reacted with phosgene and the 4-trifluoro methyl-4'-chlorodiphenyl ether-2-carbamic acid obtained - chloride with 2-amino-4, 4'-dichloro-1, 1'-diphenyl ether-2'-sulfonsa. urem sodium converts. 2. Verfahren gemäss Patentanspruch, dadurch gekennzeiehnet, dass man 4-Trifluor methyl-4'-chlor-2-amino-1, 1'-diphenylÏther mit Phosgen bei erhöhter Temperatur umsetzt und das erhaltene 4-Trifluormethyl-4'-chlor-diphenyläther-2-isocyanat mit 2-amino-4, 4'-dichlor- 1, 1'-diphenylather-2'-sulfonsaurem Natrium umsetzt. 2. The method according to claim, characterized in that 4-trifluoro methyl-4'-chloro-2-amino-1, 1'-diphenyl ether is reacted with phosgene at elevated temperature and the 4-trifluoromethyl-4'-chloro-diphenyl ether obtained Reacts -2-isocyanate with 2-amino-4, 4'-dichloro-1, 1'-diphenylether-2'-sulfonic acid sodium. 3. Verfahren gemäss Patentanspruch, dadurch gekennzeichnet, dass man 4-Trifluor methyl-4'-chlor-2-amino-1, 1'-diphenyläther mit einem Ealogenkohlensäureester umsetzt und den erhaltenen 4-Trifluormethyl-4'-chlor-diphenyläther-2-carbaminsäureester mit 2-amino4, 4'-dichlor-1, 1'-diphenyläther-2'-sulfonsaurem Natrium umsetzt. 3. The method according to claim, characterized in that 4-trifluoro methyl-4'-chloro-2-amino-1, 1'-diphenyl ether is reacted with a carbonic acid ester and the 4-trifluoromethyl-4'-chloro-diphenyl ether-2 obtained -carbamic acid ester with 2-amino4, 4'-dichloro-1, 1'-diphenyl ether-2'-sulfonic acid sodium.
CH305314D 1950-12-26 1950-12-26 Process for the production of a condensation product. CH305314A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH305314T 1950-12-26
CH300283T 1950-12-26

Publications (1)

Publication Number Publication Date
CH305314A true CH305314A (en) 1955-02-15

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CH305314D CH305314A (en) 1950-12-26 1950-12-26 Process for the production of a condensation product.

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Country Link
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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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