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GB927128A - A process for the manufacture of metallo-complex formazane-dyestuffs - Google Patents

A process for the manufacture of metallo-complex formazane-dyestuffs

Info

Publication number
GB927128A
GB927128A GB3002559A GB3002559A GB927128A GB 927128 A GB927128 A GB 927128A GB 3002559 A GB3002559 A GB 3002559A GB 3002559 A GB3002559 A GB 3002559A GB 927128 A GB927128 A GB 927128A
Authority
GB
United Kingdom
Prior art keywords
formula
sulphonic acid
aminophenol
hydroxy
substituted
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
GB3002559A
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.)
ZDENEK JOSEF ALLAN
Original Assignee
ZDENEK JOSEF ALLAN
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 ZDENEK JOSEF ALLAN filed Critical ZDENEK JOSEF ALLAN
Priority to GB3002559A priority Critical patent/GB927128A/en
Publication of GB927128A publication Critical patent/GB927128A/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
    • C09B50/00Formazane dyes; Tetrazolium dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Abstract

Copper, cobalt or chromium complexes of o:o-dihydroxy-formazane dyes of the formula <FORM:0927128/IV(a)/1> where R1 is an aromatic residue substituted by a hydroxyl group ortho to the azo linkage and which may be further substituted, R2 is a substituted or unsubstituted aromatic residue and R3 is phenyl or naphthyl having a hydroxyl group ortho to the nitrogen atom and which may be further substituted, are made by coupling an o-diazophenol or o-diazonaphthol or an ether thereof with a compound of the formula R1-N=N-CH2CONH-R2 in an aqueous alkali-metal hydroxide solution, the product then being boiled with an aqueous copper, cobalt or chromium salt solution. Specified diazo-phenols or diazonaphthols are those derived from 2-aminophenol-4-sulphonamide 2-aminophenol-4-sulphonic acid and 3:31-dimethoxy-4:41-diaminodiphenyl and 1:2-diazonaphthol-4-sulphonic acid. Coupling components are the compound of the formula <FORM:0927128/IV(a)/2> and compounds of this formula carrying a sulphonamide or sulphonic acid group para to the hydroxy group. Wool, cellulose and polyamide fibres are dyed by the above metallized and unmetallized dyes and dyeings from the latter may be subsequently metallized. In examples, wool dyed by (2) 2-aminophenol-4-sulphonic acid --> 2-hydroxy-benzeneazo-omega-acetanilide and by (3) 3:31-dimethoxy-4:41-diaminodiphenyl --> 2-hydroxy-5-sulphophenyl-azo-omega-acetanilide is boiled with copper sulphate solution.
GB3002559A 1959-09-03 1959-09-03 A process for the manufacture of metallo-complex formazane-dyestuffs Expired GB927128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3002559A GB927128A (en) 1959-09-03 1959-09-03 A process for the manufacture of metallo-complex formazane-dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3002559A GB927128A (en) 1959-09-03 1959-09-03 A process for the manufacture of metallo-complex formazane-dyestuffs

Publications (1)

Publication Number Publication Date
GB927128A true GB927128A (en) 1963-05-29

Family

ID=10301050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3002559A Expired GB927128A (en) 1959-09-03 1959-09-03 A process for the manufacture of metallo-complex formazane-dyestuffs

Country Status (1)

Country Link
GB (1) GB927128A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758658A (en) * 1985-10-07 1988-07-19 Imperial Chemical Industries Plc Water-soluble formazan dye

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758658A (en) * 1985-10-07 1988-07-19 Imperial Chemical Industries Plc Water-soluble formazan dye
US4772323A (en) * 1985-10-07 1988-09-20 Canon Kabushiki Kaisha Ink comprising at least one water soluble-formazan dye, free from cellulose-reactive groups

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