CH562229A5 - Dihalo-triazinyl-ureas - from is cyanates and ammonia or amines - Google Patents

Dihalo-triazinyl-ureas - from is cyanates and ammonia or amines

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Publication number
CH562229A5
CH562229A5 CH610072A CH610072A CH562229A5 CH 562229 A5 CH562229 A5 CH 562229A5 CH 610072 A CH610072 A CH 610072A CH 610072 A CH610072 A CH 610072A CH 562229 A5 CH562229 A5 CH 562229A5
Authority
CH
Switzerland
Prior art keywords
formula
triazinyl
amines
dihalo
ureas
Prior art date
Application number
CH610072A
Other languages
German (de)
Original Assignee
Ciba Geigy 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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Priority to CH610072A priority Critical patent/CH562229A5/en
Priority to US00260878A priority patent/US3849413A/en
Priority to FR727221661A priority patent/FR2143021B1/fr
Priority to JP6053272A priority patent/JPS5649911B1/ja
Priority to DE19722230070 priority patent/DE2230070A1/en
Priority to IT51011/72A priority patent/IT958450B/en
Priority to AR242655A priority patent/AR194249A1/en
Priority to BE785174A priority patent/BE785174A/en
Priority to CS441972A priority patent/CS159707B2/cs
Publication of CH562229A5 publication Critical patent/CH562229A5/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B62/00Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
    • C09B62/02Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group directly attached to a heterocyclic ring
    • C09B62/04Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group directly attached to a heterocyclic ring to a triazine ring

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Paper (AREA)

Abstract

Cpds. of formula (where Hal = halogen atom, esp. Cl; Z = a prim. or sec. amine gp. or pref. NH2) are prepd. by reaction of a cpd. of formula (I; NHCI-Z replaced by -NCO) with NH3 or an aq. soln. of a prim. or sec. amine. The cpds. are used in the prepn. of fibre reactive dyes, esp. for cellulose fibres.

Description

  

  
 



   Die vorliegende Erfindung betrifft ein neues Verfahren zur Herstellung von Verbindungen der Formel
EMI1.1     
 worin Hal ein Halogenatom, insbesondere ein Chloratom bedeutet und Z der Rest eines primären oder sekundären   Am in.   



  ist.



   Die Herstellung der erfindungsgemässen neuen Verbindungen geschieht durch Umsetzung der entsprechenden   S-Tri    azinylisocyanate mit wasserlöslichen primären oder sekundären Aminen.



   Am zweckmässigsten wird dabei das in einem organischen   Lösungsmittel,    z.B. Benzol. gelöste Isocyanat zu einer wässerigen Lösung des Amins zugetropft, wobei die Reaktionspartner in etwa stöchiometrischen Mengen verwendet werden   unc    mit Vorteil bei relativ tiefer Temperatur, z.B. bei 0 bis   10 C,    gearbeitet wird. Trotz der Anwesenheit von Wasser erfolgt dabei die Umsetzung praktisch quantitativ, d.h. ohne Hydrolyse des   Isocyanates    und auch ohne Bildung von anderen Nebenprodukten.



   Als Amine kommen niedrigmolekulare aliphatische Ami   ne,    insbesondere Alkylamine. deren Alkylreste I bis 4 C-Atome enthalten. oder cycloaliphatische oder heterocyclische Amine in Betracht. wie Methylamin. Dimethylamin, Äthylamin. Isopropylamin. t-Butylamin, Diäthylamin, Cyclohexylamin. Piperidin. Pyrrolidin oder Morpholin.



   Die Herstellung der als Ausgangsprodukte verwendeten Isocyanate geschieht am zweckmässigsten durch Umsetzung von Aminodihalogentriazinen mit Oxalsäuredichlorid gemäss der Reaktionsgleichung
EMI1.2     

Die neuen Produkte eignen sich vor allem als Zwischenprodukte für die Herstellung von faserreaktiven Farbstoffen.



  Durch Umsetzung mit einem eine acylierbare Aminogruppe enthaltenden Farbstoff entstehen z.B. Reaktivfarbstoffe der Formel
EMI1.3     
 die sich durch eine besonders hohe Reaktionsfähigkeit, insbesondere mit Zellulosefasern auszeichnen. Z bedeutet in dieser Formel dasselbe wie oben.



   In den nachfolgenden Beispielen bedeuten die Teile. sofern nichts anderes angegeben wird, Gewichtsteile, die Prozente Gewichtsprozente, und die Temperaturen sind in Celsiusgraden angegeben.



   Beispiel I
19,1 Teile 2,4-Dichlor-6-isocyanato-s-triazin werden in 250 Teilen Toluol gelöst und diese Lösung zu einer Suspension von 50 Teilen Toluol in einem Gemisch von 4,8 Teilen Äthylamin und 300 Teilen Wasser unter intensivem Rühren bei   0-8"    getropft. Nach kurzem Nachrühren wird das ausgefallene Produkt abgesaugt, die Toluolphase des Filtrats (nach Trocknen über Na2SO4) eingedampft und der Rückstand mit dem getrockneten vereinigt.



   Man erhält so 15,8 Teile N-Äthyl-N'-(2,4-dichlor-s-triazin -6-yl)-harnstoff, der bei   153-155"    schmilzt.



   Das Rohprodukt kann von eventuell mitentstandenem N   -Äthyl-N'-(2-chlor-4-äthylamino-s-triazin-6-yl)-harnstoff    durch Umkristallisieren aus Benzol gereinigt werden.



   Die Elementaranalyse ergibt (in Klammern der für   C6H7Cl2N5O    berechnete Wert):
C:   30,4(30,53)    H: 3,1(2,99) Cl: 29,8   (30,04) (4   
Beispiel 2 Verwendet man statt des Äthylamins in Beispiel 1 7.8 Teile Diäthylamin, so erhält man 18,0 Teile   N,N-Diäthyl-N'-(2,4-      -Dichloro-s-triazin-6-yl)-harnstoff,    der nach Umkristallisieren aus Dioxan bei   183-184     schmilzt.

 

   Die Elementaranalyse ergibt für   (C5H11Cl2N5O    berechnete Werte in Klammern):
C: 36,2 (36,38) H: 4,4 (4,20) Cl: 26,9 (26,85)   %       Beispiel 3   
Wird in Beispiel 1 anstelle des Äthylamins Morpholin (9.2 Teile) eingesetzt. so erhält man   20,8    Teile einer Verbindung der Formel:
EMI1.4     
 die nach Umkristallisiercn aus Chlorbenzol bei   190-192     schmilzt
Die Elementaranalyse ergibt für   (C8H9CI2NsO2    berechnete Werte in Klammern):
C:   34,4(34,55)    H:   3,5    (3.26) Cl:   25,9    (25.50)   9    



  
 



   The present invention relates to a new process for the preparation of compounds of the formula
EMI1.1
 where Hal denotes a halogen atom, in particular a chlorine atom, and Z denotes the radical of a primary or secondary Am in.



  is.



   The novel compounds according to the invention are prepared by reacting the corresponding S-tri azinyl isocyanates with water-soluble primary or secondary amines.



   It is most convenient to do this in an organic solvent, e.g. Benzene. dissolved isocyanate is added dropwise to an aqueous solution of the amine, the reactants being used in approximately stoichiometric amounts and advantageously at a relatively low temperature, e.g. at 0 to 10 C, is worked. Despite the presence of water, the conversion takes place practically quantitatively, i.e. without hydrolysis of the isocyanate and also without the formation of other by-products.



   The amines are low molecular weight aliphatic amines, especially alkylamines. whose alkyl radicals contain I to 4 carbon atoms. or cycloaliphatic or heterocyclic amines. like methylamine. Dimethylamine, ethylamine. Isopropylamine. t-butylamine, diethylamine, cyclohexylamine. Piperidine. Pyrrolidine or morpholine.



   The isocyanates used as starting materials are most conveniently prepared by reacting aminodihalotriazines with oxalic acid dichloride in accordance with the reaction equation
EMI1.2

The new products are particularly suitable as intermediates for the manufacture of fiber-reactive dyes.



  By reaction with a dye containing an acylatable amino group, e.g. Reactive dyes of the formula
EMI1.3
 which are characterized by a particularly high reactivity, especially with cellulose fibers. Z in this formula means the same as above.



   In the following examples, the parts mean. Unless otherwise indicated, parts by weight, percentages percentages by weight, and temperatures are given in degrees Celsius.



   Example I.
19.1 parts of 2,4-dichloro-6-isocyanato-s-triazine are dissolved in 250 parts of toluene and this solution is added to a suspension of 50 parts of toluene in a mixture of 4.8 parts of ethylamine and 300 parts of water with vigorous stirring 0-8 ". After brief stirring, the precipitated product is filtered off with suction, the toluene phase of the filtrate is evaporated (after drying over Na2SO4) and the residue is combined with the dried one.



   This gives 15.8 parts of N-ethyl-N '- (2,4-dichloro-s-triazin-6-yl) urea, which melts at 153-155 ".



   The crude product can be purified from any N-ethyl-N '- (2-chloro-4-ethylamino-s-triazin-6-yl) urea by recrystallization from benzene.



   The elemental analysis gives (in brackets the value calculated for C6H7Cl2N5O):
C: 30.4 (30.53) H: 3.1 (2.99) Cl: 29.8 (30.04) (4th
Example 2 If instead of the ethylamine in Example 1, 7.8 parts of diethylamine are used, 18.0 parts of N, N-diethyl-N '- (2,4- -dichloro-s-triazin-6-yl) urea are obtained after recrystallization from dioxane melts at 183-184.

 

   The elemental analysis results for (C5H11Cl2N5O calculated values in brackets):
C: 36.2 (36.38) H: 4.4 (4.20) Cl: 26.9 (26.85)% Example 3
In Example 1, morpholine (9.2 parts) is used instead of ethylamine. this gives 20.8 parts of a compound of the formula:
EMI1.4
 which, after recrystallization from chlorobenzene, melts at 190-192
The elemental analysis results for (C8H9CI2NsO2 calculated values in brackets):
C: 34.4 (34.55) H: 3.5 (3.26) Cl: 25.9 (25.50) 9

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von N-(2.4-Dihalogen-s-triazin- -6-yl)-harnstoffen der Formel EMI2.1 worin Hal ein Halogenatom und Z der Rest eines primären oder sekundären Amins ist, dadurch gekennzeichnet, dass man ein Dihalogen-s-triazinylisocyanat der Formel EMI2.2 mit einerwässrigen Lösung eines primären oder sekundären Amins umsetzt. PATENT CLAIM Process for the preparation of N- (2.4-dihalogen-s-triazin- -6-yl) -ureas of the formula EMI2.1 in which Hal is a halogen atom and Z is the radical of a primary or secondary amine, characterized in that one is a dihalo-s-triazinyl isocyanate of the formula EMI2.2 with an aqueous solution of a primary or secondary amine. UNTERANSPRÜCHE 1. Verfahren gemäss Patentanspruch, dadurch gekennzeichnet, dass man das Dichlor-s-triazinylisocyanat als Ausgangsverbindung verwendet. SUBCLAIMS 1. The method according to claim, characterized in that the dichloro-s-triazinyl isocyanate is used as the starting compound. 2. Verfahren gemäss Patentanspruch, dadurch gekennzeichnet, dass man niedrigmolekulare Alkylamine, Cycloalkylamine oder heterocyclische Amine verwendet. 2. The method according to claim, characterized in that low molecular weight alkylamines, cycloalkylamines or heterocyclic amines are used. 3. Verfahren gemäss Patentanspruch, dadurch gekennzeichnet, dass man die Reaktion unterhalb Raumtemperatur, vorzugsweise bei 0 bis 10 C durchführt. 3. The method according to claim, characterized in that the reaction is carried out below room temperature, preferably at 0 to 10 C.
CH610072A 1971-06-22 1972-04-25 Dihalo-triazinyl-ureas - from is cyanates and ammonia or amines CH562229A5 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
CH610072A CH562229A5 (en) 1972-04-25 1972-04-25 Dihalo-triazinyl-ureas - from is cyanates and ammonia or amines
US00260878A US3849413A (en) 1971-06-22 1972-06-08 Process for the manufacture of n-(2,4-dihalogeno-s-triazin-6-yl)-ureas
FR727221661A FR2143021B1 (en) 1971-06-22 1972-06-15
JP6053272A JPS5649911B1 (en) 1971-06-22 1972-06-19
DE19722230070 DE2230070A1 (en) 1971-06-22 1972-06-20 Process for the preparation of N- (2,4-dihalo-s-triazin-6-yl) ureas
IT51011/72A IT958450B (en) 1971-06-22 1972-06-20 PROCEDURE TO PRODUCE N 2 4 DIHALOGEN S TRIAZIN 6 IL UREE
AR242655A AR194249A1 (en) 1971-06-22 1972-06-21 PROCEDURE FOR THE PREPARATION OF N- (2,4-DIHALOGEN-S-TRIACIN-6-IL) UREAS
BE785174A BE785174A (en) 1971-06-22 1972-06-21 PROCESS FOR THE PREPARATION OF N- (2,4-DIHALOGENO-S-TRIAZIN-6-YL) - UREES
CS441972A CS159707B2 (en) 1972-04-25 1972-06-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH610072A CH562229A5 (en) 1972-04-25 1972-04-25 Dihalo-triazinyl-ureas - from is cyanates and ammonia or amines

Publications (1)

Publication Number Publication Date
CH562229A5 true CH562229A5 (en) 1975-05-30

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ID=4304268

Family Applications (1)

Application Number Title Priority Date Filing Date
CH610072A CH562229A5 (en) 1971-06-22 1972-04-25 Dihalo-triazinyl-ureas - from is cyanates and ammonia or amines

Country Status (2)

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CH (1) CH562229A5 (en)
CS (1) CS159707B2 (en)

Also Published As

Publication number Publication date
CS159707B2 (en) 1975-01-31

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