GB865748A - Metallisable tetrakisazo dyestuffs - Google Patents

Metallisable tetrakisazo dyestuffs

Info

Publication number
GB865748A
GB865748A GB26233/59A GB2623359A GB865748A GB 865748 A GB865748 A GB 865748A GB 26233/59 A GB26233/59 A GB 26233/59A GB 2623359 A GB2623359 A GB 2623359A GB 865748 A GB865748 A GB 865748A
Authority
GB
United Kingdom
Prior art keywords
amino
group
sulphonic acid
methyl
acid
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
GB26233/59A
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 GB865748A publication Critical patent/GB865748A/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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/18—Trisazo or higher polyazo dyes
    • C09B33/26—Tetrazo dyes of the type A->B->C->K<-D
    • 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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/24—Disazo or polyazo compounds
    • 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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/38—Preparation from compounds with —OH and —COOH adjacent in the same ring or in peri position

Landscapes

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

Abstract

The invention comprises tetrakisazo dyes of formula:- <FORM:0865748/IV(c)/1> wherein R is hydrogen or a methyl group, R1 is hydrogen or a sulphonic acid group, R2 is a methoxy or carboxylic acid group, R3 is hydrogen or a methyl or methoxy group, and R4 is hydrogen or a methyl group, with the proviso that R2 is a methoxy group when R1 is a sulphonic acid group; and the copper complexes thereof. They are prepared by coupling a diazotized 7-aminobenztriazole, which may contain a methyl group in the benzene nucleus, in an acid medium with 2-amino-5-naphthol-7-sulphonic acid and coupling the monoazo compound so obtained in alkaline medium with the diazo compound of an aminodisazo dye of formula:- <FORM:0865748/IV(c)/2> The tetrakisazo dyes may be coppered in substance or on the fibre. They give black shades on cellulose fibres. In Examples: (1) the aminodisazo dye 4-amino-41-hydroxy-31-carboxybenzeneazo-(1 : 11)-benzene-2-sulphonic acid --> 3-amino-4-methoxy-1-methylbenzene is prepared and then is diazotized and coupled in the presence of pyridine with 7-aminobenzriazole --> 2-amino-5-naphthol-7-sulphonic acid and alternative reactants specified are 4-amino-41-hydroxy-31-carboxy-51- or -61-methyl-azo-(1 : 11)-benzene-2-sulphonic acid, 2-amino-1 : 4-dimethoxybenzene and 7-amino-4-methyl-benztriazole; (2) the disazo dye 4-amino-3-carboxybenzene-azo-(1 : 41)-benzene-azo-(11 : 111)-41-hydroxybenzene-311-carboxylic acid, obtainable by the condensation of 4-nitro-41-hydroxyazobenzene-31-carboxylic acid with 2 : 5-diaminobenzoic acid, is diazotized and coupled with 7-aminobenztriazole --> 2-amino-5-naphthol-7-sulphonic acid. Specification 451,673 is referred to.
GB26233/59A 1958-08-12 1959-07-30 Metallisable tetrakisazo dyestuffs Expired GB865748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE865748X 1958-08-12

Publications (1)

Publication Number Publication Date
GB865748A true GB865748A (en) 1961-04-19

Family

ID=6801899

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26233/59A Expired GB865748A (en) 1958-08-12 1959-07-30 Metallisable tetrakisazo dyestuffs

Country Status (1)

Country Link
GB (1) GB865748A (en)

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