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GB1112875A - Azo dyestuffs - Google Patents

Azo dyestuffs

Info

Publication number
GB1112875A
GB1112875A GB4405266A GB4405266A GB1112875A GB 1112875 A GB1112875 A GB 1112875A GB 4405266 A GB4405266 A GB 4405266A GB 4405266 A GB4405266 A GB 4405266A GB 1112875 A GB1112875 A GB 1112875A
Authority
GB
United Kingdom
Prior art keywords
radical
substituted
alkyl
carboxylic acid
appropriate
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4405266A
Inventor
Hans-Gerhard Hanke
Guenter Oertel
Hans Holtschmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1112875A publication Critical patent/GB1112875A/en
Expired legal-status Critical Current

Links

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
    • C09B35/00Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02Disazo dyes
    • C09B35/021Disazo dyes characterised by two coupling components of the same type
    • C09B35/03Disazo dyes characterised by two coupling components of the same type in which the coupling component is a heterocyclic compound
    • 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
    • C09B35/00Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02Disazo dyes

Landscapes

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

Abstract

The invention comprises azo dyestuffs of the general formula <FORM:1112875/C4-C5/1> wherein A is an aromatic-carbocyclic or -heterocyclic radical or a copper phthalo-cyanine residue (Cu-Pc), R is H, alkyl, aralkyl, aryl, or carboxylic acid ester radical, R1 is C2-C10 straight or branched chain alkylene radical which may be substituted, R2 is H or C1-C4 alkyl radical, R3 is C1-C4 alkyl or alkenyl radical, n is 1 or 2 and when A is CuPc n is 1, 2, 3 or 4. R1, which is preferably ethylene or propylene, may be substituted by aryl, cycloalkyl, ether, thioether or halogen and A is preferably a benzene, naphthalene, thiazole, benzothiazole, imidazole or benzimidazole radical which may be substituted by sulphonic or carboxylic acid groups, sulphonamide, sulphone, carboxylic acid ester, nitro, substituted or acylated amino groups, cyano, halogen, trifluoromethyl, alkyl, alkoxy, cyanoalkyl, cyanalkoxy or further azo groups. They are prepared by (a) diazotizing an appropriate aromatic-carbocyclic or heterocyclic or CuPc diazo compound with an appropriate pyrazolone coupling component or (b) reacting an appropriate azo dye containing an -R1-OH group in the 1-pyrazolone position with a compound OCN-CH(R2)-OR3 in an organic solvent which is inert to isocyanates. The dyes give yellow, orange, red and green shades on wool, silk, leather and synthetic polyamides, natural or regenerated cellulose at elevated temperatures.
GB4405266A 1965-12-15 1966-10-03 Azo dyestuffs Expired GB1112875A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0047923 1965-12-15

Publications (1)

Publication Number Publication Date
GB1112875A true GB1112875A (en) 1968-05-08

Family

ID=7101920

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4405266A Expired GB1112875A (en) 1965-12-15 1966-10-03 Azo dyestuffs

Country Status (5)

Country Link
BE (1) BE690912A (en)
CH (1) CH470460A (en)
DE (1) DE1544550A1 (en)
FR (1) FR1505719A (en)
GB (1) GB1112875A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118186A (en) 1976-05-13 1978-10-03 Hoechst Aktiengesellschaft Process for the fixation of organic dyestuffs on materials having a fibrous structure
US4201547A (en) 1977-03-22 1980-05-06 Hoechst Aktiengesellschaft Process for the preparation of azo dyestuffs on fiber materials consisting of, or containing, cellulose fibers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118186A (en) 1976-05-13 1978-10-03 Hoechst Aktiengesellschaft Process for the fixation of organic dyestuffs on materials having a fibrous structure
US4201547A (en) 1977-03-22 1980-05-06 Hoechst Aktiengesellschaft Process for the preparation of azo dyestuffs on fiber materials consisting of, or containing, cellulose fibers

Also Published As

Publication number Publication date
FR1505719A (en) 1967-12-15
CH470460A (en) 1969-03-31
DE1544550A1 (en) 1970-05-21
BE690912A (en) 1967-05-16

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