GB922162A - Improvements in or relating to acid monoazo dyestuffs of the benzene-azo-naphthalene series - Google Patents

Improvements in or relating to acid monoazo dyestuffs of the benzene-azo-naphthalene series

Info

Publication number
GB922162A
GB922162A GB3520659D GB3520659D GB922162A GB 922162 A GB922162 A GB 922162A GB 3520659 D GB3520659 D GB 3520659D GB 3520659 D GB3520659 D GB 3520659D GB 922162 A GB922162 A GB 922162A
Authority
GB
United Kingdom
Prior art keywords
substituted
dyes
sulphonic acid
radicals
amino
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
GB3520659D
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.)
Sandoz AG
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 CH6290958A external-priority patent/CH369838A/en
Priority claimed from CH6829959A external-priority patent/CH372118A/en
Application filed by Sandoz AG filed Critical Sandoz AG
Publication of GB922162A publication Critical patent/GB922162A/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
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/06Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group

Landscapes

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

Abstract

The invention comprises dyes of formula <FORM:0922162/IV(a)/1> wherein x is a direct linkage or -O-, R1 and R2 are, p when x is -O- radicals of the benzene series which may be further substituted, or when x is a direct linkage, radicals of the benzene series which may be further substituted other than with sulphonamide or alkylsulphonamide radicals, and with the further exception that when R2 is substituted by -OH and -COOH these substituents are not in o-position with respect to each other, R3 is, when x is -O-, hydroxyl or, when x is a direct linkage hydroxyl or an amino group which may be mono- or di-substituted by unsulphonated organic radicals and R4 is hydrogen or alkyl which may be substituted, and wherein -N=N- is in o-position to R2-X-O2S- and the whole molecule contains one sulphonic acid group, other than the dyes wherein simultaneously R2 contains a sulphonic acid group, R3 is a substituted amino group and R4 is hydrogen. The dyes are prepared by conventional coupling procedures using o-substituted diazobenzenes and substituted 2-naphthylamine components. The dyes give orange to red shades on wool, silk, and synthetic polyamide fibres and leather. In examples the dyes 2-amino-41-methyl-1:11-diphenyl-sulphone-4-sulphonic acid --> 2-aminonaphthalene-5-sulphonic acid-n-nonylamide and 1-aminobenzene-2-sulphonic acid-(41-cyclohexyl)-phenyl ester --> 2-amino-naphthalene-5-sulphonic acid are prepared. Many further dyes are specified in examples. Specification 902,877 is referred to.
GB3520659D 1958-08-14 1959-07-22 Improvements in or relating to acid monoazo dyestuffs of the benzene-azo-naphthalene series Expired GB922162A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH6290958A CH369838A (en) 1958-08-14 1958-08-14 Process for the preparation of acidic monoazo dyes
CH6829959A CH372118A (en) 1958-09-03 1959-01-14 Process for the preparation of acidic monoazo dyes
CH7459359 1959-06-18

Publications (1)

Publication Number Publication Date
GB922162A true GB922162A (en) 1963-03-27

Family

ID=27178504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3520659D Expired GB922162A (en) 1958-08-14 1959-07-22 Improvements in or relating to acid monoazo dyestuffs of the benzene-azo-naphthalene series

Country Status (1)

Country Link
GB (1) GB922162A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4918183A (en) * 1982-08-04 1990-04-17 Ciba-Geigy Corporation Monoazo dyes, process for their preparation, and the use thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4918183A (en) * 1982-08-04 1990-04-17 Ciba-Geigy Corporation Monoazo dyes, process for their preparation, and the use thereof

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