CH473778A - Process for the preparation of hydrazine derivatives - Google Patents

Process for the preparation of hydrazine derivatives

Info

Publication number
CH473778A
CH473778A CH1807966A CH1807966A CH473778A CH 473778 A CH473778 A CH 473778A CH 1807966 A CH1807966 A CH 1807966A CH 1807966 A CH1807966 A CH 1807966A CH 473778 A CH473778 A CH 473778A
Authority
CH
Switzerland
Prior art keywords
formula
parts
preparation
hydrazine derivatives
optionally substituted
Prior art date
Application number
CH1807966A
Other languages
German (de)
Inventor
Roland Dr Entschel
Curt Dr Mueller
Walter Dr Wehrli
Original Assignee
Sandoz 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
Priority claimed from CH470961A external-priority patent/CH435495A/en
Priority claimed from CH489862A external-priority patent/CH496765A/en
Application filed by Sandoz Ag filed Critical Sandoz Ag
Priority to CH1807966A priority Critical patent/CH473778A/en
Priority claimed from CH35962A external-priority patent/CH462348A/en
Priority claimed from CH1501362A external-priority patent/CH461664A/en
Publication of CH473778A publication Critical patent/CH473778A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D295/00Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/22Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with hetero atoms directly attached to ring nitrogen atoms
    • C07D295/28Nitrogen atoms
    • C07D295/30Nitrogen atoms non-acylated
    • 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
    • C09B62/44Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring
    • C09B62/62Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring the reactive group being an ethylenimino or N—acylated ethylenimino group or a —CO—NH—CH2—CH2—X group, wherein X is a halogen atom, a quaternary ammonium group or O—acyl and acyl is derived from an organic or inorganic acid, or a beta—substituted ethylamine group
    • C09B62/66Azo dyes

Description

  

  



  Verfahren zur Herstellung von Hydrazinderivaten
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Hydrazinderivaten der Formel
EMI1.1     
 worin A den Rest eines Farbstoffzwischenprodukts, y die direkte Bindung oder ein zweiwertiges Radikal,   Ri    und   R2    gleiche oder verschiedene, gegebenenfalls sub  stituierte    Kohlenwasserstoffreste oder   Ri,    R2 und    -Nd3-    zusammen ein heterocyclisches Ringsystem,   R,    und   R4    Wasserstoff oder gleiche oder verschiedene, gegebenenfalls substituierte Kohlenwasserstoffreste, die beide zusammen   mit-N-ein    heterocyclisches Ringsystem bilden können, n eine ganze Zahl und X ein dem Kation äquivalentes Anion bedeuten, dadurch gekennzeichnet,

   dass man ein Mol einer Verbindung der Formel    A---y-E) (II)    worin E den Säurerest eines Esters bedeutet und A, y und n die oben genannten Bedeutungen besitzt, mit mindestens einem Mol einer Verbindung der Formel
EMI1.2     
 umsetzt.



   Als Substituenten kommen in Frage : z. B. Halogenatome oder Cyan-, Nitro-oder Hydroxylgruppen oder gegebenenfalls substituierte Alkyl-, Alkoxy-, Alkylsulfonyl-, Alkoxycarbonyl-, Alkylcarbonyl-oxy-,   Carbonsäureamid-oder Sulfonsäureamidgruppen.   



   Als Brückenglieder y eignen sich vorzugsweise ge  gebenenfalls    substituierte Alkylgruppen, die von Heteroatomen unterbrochen sein können, y kann auch z. B. mit   R,      und-N-ein    Ringsystem bilden, so dass Ringgruppierungen wie z. B.
EMI1.3     
 entstehen. Solche Verbindungen erhält man   beispiels-    weise durch Umsatz von Dihalogenverbindungen mit Hydrazinen, z. B.
EMI1.4     




   Als Säurereste E kommen beispielsweise in Betracht diejenigen der Schwefelsäure   (E steht für     -SO4H), einer Sulfonsäure (E steht   für-SOgR    ; wobei R einen gegebenenfalls substituierten Kohlenwasserstoffrest bedeutet), des Schwefelwasserstoffs (E steht für SH), vorzugsweise aber diejenigen der Halogenwas  serstoffsäuren    (E steht dann vorzugsweise für   Cl,    Br usw).



   Die Umsetzung einer Verbindung der Formel   (II)    mit einem Hydrazin der Formel (III) kann in einem organischen Lösungsmittel und bei Temperaturen von   -50  bis +250  C    erfolgen. Man kann die Umsetzung aber auch in wässerigem Medium, gegebenenfalls unter Zugabe eines organischen Lösungsmittels bei den zuvorgenannten Temperaturen durchführen.



   Die erhaltenen Hydrazinderivate können z. B. durch Abfiltrieren, gegebenenfalls nach Einengen oder Ausfällen, erhalten werden. Im Verlauf der Abtrennung oder in einer weiteren Stufe lassen sich die Anionen gegen andere Anionen austauschen, z. B. gegen Methylsulfat-,   Äthylsulfat-,    Sulfat-, Disulfat-, Perchlorat-, Chlorid-,   Bromid-,      Iodid-,    Phosphat-,   Phosphor-    molybdat-, Benzolsulfonat, Acetat-, Propionat-oder Benzoationen oder auch gegen komplexe Anionen, z. B. das von   Chlorzinkdoppelsalzen.   



   In den folgenden Beispielen bedeuten die Teile Ge  wichtsteile    und die Prozente Gewichtsprozente. Die Temperaturen sind in Celsiusgraden angegeben.



   Beispiel   1   
18,4 Teile   N-Athyl-N-sschloräthyl-aminobenzol    werden in 100 Teilen Methanol gelöst und die Lösung nach Zusatz von 7,2 Teilen   1,      1-Dimethylhydrazin    24 Stunden lang unter   Rückfluss    zum Sieden erhitzt.



  Dann verdampft man das Lösungsmittel und wäscht den pulverisierten Rückstand mit Benzol. Man erhält ein Farbstoffzwischenprodukt der Formel
EMI2.1     

Ersetzt man im obigen Beispiel die 7,2 Teile 1,1 Dimethylhydrazin durch 9,5 Teile   1,      1-Diäthylhydrazin    und verfährt im übrigen gleich, so erhält man ein Farbstoffzwischenprodukt der Formel
EMI2.2     

Beispiel 2
48 Teile   Dichloräthylanilin    werden in 170 Teilen Methanol gelöst, 18,5 Teile Natriumcarbonat zugegeben und hierauf unter Rühren in der Siedehitze langsam eine Lösung von 9,2 Teilen Monomethylhydrazin in 45 Teilen Methanol zugetropft. Der Umsatz ist nach etwa 24 Stunden beendet. Dann filtriert man vom ausgefallenen Salz ab und dampft das Filtrat zur Trockene ein.

   Die so erhaltene Verbindung der Formel
EMI2.3     
 schmilzt bei   216-218 .  



  



  Process for the preparation of hydrazine derivatives
The invention relates to a process for the preparation of hydrazine derivatives of the formula
EMI1.1
 wherein A is the remainder of a dye intermediate, y is the direct bond or a divalent radical, Ri and R2 are identical or different, optionally substituted hydrocarbon radicals or Ri, R2 and -Nd3- together are a heterocyclic ring system, R, and R4 are hydrogen or identical or different, optionally substituted hydrocarbon radicals, which together with -N- can form a heterocyclic ring system, n is an integer and X is an anion equivalent to the cation, characterized in that,

   that one mole of a compound of the formula A --- y-E) (II) in which E is the acid residue of an ester and A, y and n have the meanings given above, with at least one mole of a compound of the formula
EMI1.2
 implements.



   Possible substituents are: z. B. halogen atoms or cyano, nitro or hydroxyl groups or optionally substituted alkyl, alkoxy, alkylsulfonyl, alkoxycarbonyl, alkylcarbonyl-oxy, carboxamide or sulfonic acid amide groups.



   As bridge members y are preferably optionally substituted alkyl groups which may be interrupted by heteroatoms, y can also be z. B. with R, and -N- form a ring system, so that ring groupings such. B.
EMI1.3
 arise. Such compounds are obtained, for example, by reacting dihalogen compounds with hydrazines, eg. B.
EMI1.4




   Suitable acid radicals E are, for example, those of sulfuric acid (E stands for -SO4H), a sulphonic acid (E stands for -SOgR; where R stands for an optionally substituted hydrocarbon radical), hydrogen sulfide (E stands for SH), but preferably those of halogenated was hydrogen acids (E then preferably stands for Cl, Br, etc.).



   The reaction of a compound of the formula (II) with a hydrazine of the formula (III) can be carried out in an organic solvent and at temperatures from -50 to +250.degree. However, the reaction can also be carried out in an aqueous medium, if appropriate with the addition of an organic solvent, at the aforementioned temperatures.



   The hydrazine derivatives obtained can, for. B. by filtering off, optionally after concentration or precipitation, are obtained. In the course of the separation or in a further stage, the anions can be exchanged for other anions, e.g. B. against methyl sulfate, ethyl sulfate, sulfate, disulfate, perchlorate, chloride, bromide, iodide, phosphate, phosphorus molybdate, benzene sulfonate, acetate, propionate or benzoate ions or against complex anions, z. B. that of zinc chloride double salts.



   In the following examples, the parts are parts by weight and the percentages are percentages by weight. The temperatures are given in degrees Celsius.



   Example 1
18.4 parts of N-ethyl-N-sschloräthyl-aminobenzol are dissolved in 100 parts of methanol and, after the addition of 7.2 parts of 1,1-dimethylhydrazine, the solution is refluxed for 24 hours.



  The solvent is then evaporated off and the pulverized residue is washed with benzene. A dye intermediate of the formula is obtained
EMI2.1

If the 7.2 parts of 1,1-dimethylhydrazine in the above example are replaced by 9.5 parts of 1,1-diethylhydrazine and the rest of the procedure is the same, a dye intermediate of the formula is obtained
EMI2.2

Example 2
48 parts of dichloroethylaniline are dissolved in 170 parts of methanol, 18.5 parts of sodium carbonate are added, and a solution of 9.2 parts of monomethylhydrazine in 45 parts of methanol is slowly added dropwise with stirring at the boiling point. The conversion ends after about 24 hours. The precipitated salt is then filtered off and the filtrate is evaporated to dryness.

   The compound of the formula thus obtained
EMI2.3
 melts at 216-218.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von Hydrazinderivaten der Formel EMI2.4 worin A den Rest eines Farbstoffzwischenprodukts, y die direkte Bindung oder ein zweiwertiges Radikal, Rj und R2 gleiche oder verschiedene, gegebenenfalls substituierte Kohlenwasserstoffreste oder Ri, R2 und zusammen ein heterocyclisches Ringsystem, Rg und R4 Wasserstoff oder gleiche oder verschiedene, gege benenfalls substituierte Kohlenwasserstoffreste, die beide zusammen mit-N-ein heterocyclisches Ringsystem bilden können, n eine ganze Zahl und X ein dem Kation äquivalentes Anion bedeuten, dadurch gekennzeichnet, dass man ein Mol einer Verbindung der Formel A+YE) n (11) PATENT CLAIM Process for the preparation of hydrazine derivatives of the formula EMI2.4 wherein A is the radical of a dye intermediate, y is the direct bond or a divalent radical, Rj and R2 are identical or different, optionally substituted hydrocarbon radicals or Ri, R2 and together are a heterocyclic ring system, Rg and R4 are hydrogen or identical or different, optionally substituted hydrocarbon radicals, both of which can form a heterocyclic ring system together with -N-, n is an integer and X is an anion equivalent to the cation, characterized in that one mole of a compound of the formula A + YE) n (11) worin E den Säurerest eines Esters bedeutet, mit mindestens einem Mol einer Verbindung der Formel EMI2.5 umsetzt. wherein E is the acid residue of an ester with at least one mole of a compound of the formula EMI2.5 implements.
CH1807966A 1961-04-21 1962-01-12 Process for the preparation of hydrazine derivatives CH473778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1807966A CH473778A (en) 1961-04-21 1962-01-12 Process for the preparation of hydrazine derivatives

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH470961A CH435495A (en) 1961-04-21 1961-04-21 Process for the preparation of hydrazine derivatives
CH489862A CH496765A (en) 1961-04-21 1961-04-21 Basic anthraquinone dyes for polymers of - acrylonitrile and copolymers of acrylonitrile and vinyl ace
CH35962A CH462348A (en) 1962-01-12 1962-01-12 Process for the preparation of hydrazine derivatives
CH1807966A CH473778A (en) 1961-04-21 1962-01-12 Process for the preparation of hydrazine derivatives
CH1501362A CH461664A (en) 1962-12-21 1962-12-21 Process for the production of hydrozine derivatives

Publications (1)

Publication Number Publication Date
CH473778A true CH473778A (en) 1969-06-15

Family

ID=27508815

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1807966A CH473778A (en) 1961-04-21 1962-01-12 Process for the preparation of hydrazine derivatives

Country Status (1)

Country Link
CH (1) CH473778A (en)

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