GB685078A - New trisazo dyestuffs - Google Patents

New trisazo dyestuffs

Info

Publication number
GB685078A
GB685078A GB1675650A GB1675650A GB685078A GB 685078 A GB685078 A GB 685078A GB 1675650 A GB1675650 A GB 1675650A GB 1675650 A GB1675650 A GB 1675650A GB 685078 A GB685078 A GB 685078A
Authority
GB
United Kingdom
Prior art keywords
acid
coupling
diazotizing
nitroaniline
formula
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
GB1675650A
Inventor
Mordecai Mendoza
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1675650A priority Critical patent/GB685078A/en
Publication of GB685078A publication Critical patent/GB685078A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/38—Trisazo dyes ot the type
    • C09B35/44—Trisazo dyes ot the type the component K being a hydroxy amine
    • C09B35/46—Trisazo dyes ot the type the component K being a hydroxy amine the component K being an amino naphthol
    • C09B35/461—D being derived from diaminobenzene

Landscapes

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

Abstract

The invention comprises trisazo dyestuffs of the formula <FORM:0685078/IV (c)/1> where X is hydrogen or chlorine. These are made by diazotizing an amine of the formula <FORM:0685078/IV (c)/2> (Y=nitro or acylamino), coupling in acid medium with one mol. of the appropriate aminonaphtholsulphonic acid, coupling the product in alkaline solution with a diazotized aniline-sulphonic acid, converting Y to NH2, diazotizing the amino group and coupling in alkaline medium with m-aminophenol. The products dye leather in grey or black shades. In the examples the initial diazo component is p-nitroaniline, o-chloro-p-nitroaniline or p-amino-acetanilide, the naphthalene derivative is H acid or K acid and the second diazo component is sulphanilic acid or metanilic acid.
GB1675650A 1950-07-05 1950-07-05 New trisazo dyestuffs Expired GB685078A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1675650A GB685078A (en) 1950-07-05 1950-07-05 New trisazo dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1675650A GB685078A (en) 1950-07-05 1950-07-05 New trisazo dyestuffs

Publications (1)

Publication Number Publication Date
GB685078A true GB685078A (en) 1952-12-31

Family

ID=10083071

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1675650A Expired GB685078A (en) 1950-07-05 1950-07-05 New trisazo dyestuffs

Country Status (1)

Country Link
GB (1) GB685078A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2216325A1 (en) * 1973-02-06 1974-08-30 Hoechst Ag
US4734489A (en) * 1985-03-29 1988-03-29 Taoka Chemical Company, Limited Trisazo compounds useful in producing water-resistant ink compositions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2216325A1 (en) * 1973-02-06 1974-08-30 Hoechst Ag
US4734489A (en) * 1985-03-29 1988-03-29 Taoka Chemical Company, Limited Trisazo compounds useful in producing water-resistant ink compositions

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