GB344250A - Improvements in the manufacture and production of azo dyestuffs - Google Patents

Improvements in the manufacture and production of azo dyestuffs

Info

Publication number
GB344250A
GB344250A GB936430A GB936430A GB344250A GB 344250 A GB344250 A GB 344250A GB 936430 A GB936430 A GB 936430A GB 936430 A GB936430 A GB 936430A GB 344250 A GB344250 A GB 344250A
Authority
GB
United Kingdom
Prior art keywords
pyrazolone
carboxylic acid
phenyl
wool
dyes
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
GB936430A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB936430A priority Critical patent/GB344250A/en
Publication of GB344250A publication Critical patent/GB344250A/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
    • 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
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

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

Abstract

Monoazo dyes and soluble metal compounds thereof; acid wool dyes, dyeing with.-Monoazo dyes are obtained by coupling diazo compounds with amides of 5-pyrazolone-3-carboxylic acids; the latter may be substituted in the 1-position of the pyrazolone ring and in the amide NH2 group. Certain of the products, e.g. those obtained from o-oxydiazo compounds may be converted in substance or on the fibre into complex metal compounds by treatment with agents yielding metals. The following examples are specified. (1) The dyestuff aniline --> 1 - (41-sulpho) phenyl-5-pyrazolone-3-carboxylic acid amide dyes wool and silk level powerful golden yellow shades of good fastness. (2) The dyestuff 4-nitro-2-aminophenol-6-sulphonic acid --> 1 - (41-sulpho) phenyl-5-pyrazolone-3-carboxylic acid amide dyes wool red-brown shades which on after-chroming become very fast red-orange; the chromium compound prepared in substance gives very uniform orange-brown dyeings on wool. (3) The dyestuff 1 : 2 aminonaphthol-4-sulphonic acid --> 1-phenyl-5-pyrazolone-3-carboxylic acid anilide dyes wool brown-red shades which on after-chroming become very fast violet. (4) The dyestuff 4-nitro-2-aminophenol-6-sulphonic acid --> 1phenyl-5-pyrazolone-3-carboxylic acid amide dyes wool red-brown shades which on after chroming become very fast brown; the chromium compound prepared in substance gives very fast uniform red-orange dyeings on wool. 1-(41-Sulpho) phenyl-5-pyrazolone-3-carboxylic acid amide and 1-phenyl-5-pyrazolone-3-carboxylic acid amide are obtained by the action of ammonia on the corresponding carboxylic acid ethyl esters. 1-Phenyl-5-pyrazolone-3-carboxylic acid anilide is obtained by the action of aniline on the corresponding carboxylic acid chloride.
GB936430A 1930-03-24 1930-03-24 Improvements in the manufacture and production of azo dyestuffs Expired GB344250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB936430A GB344250A (en) 1930-03-24 1930-03-24 Improvements in the manufacture and production of azo dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB936430A GB344250A (en) 1930-03-24 1930-03-24 Improvements in the manufacture and production of azo dyestuffs

Publications (1)

Publication Number Publication Date
GB344250A true GB344250A (en) 1931-03-05

Family

ID=9870517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB936430A Expired GB344250A (en) 1930-03-24 1930-03-24 Improvements in the manufacture and production of azo dyestuffs

Country Status (1)

Country Link
GB (1) GB344250A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919003C (en) * 1951-12-15 1954-10-11 Ciba Geigy Process for the production of new metallizable monoazo dyes and their metal compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919003C (en) * 1951-12-15 1954-10-11 Ciba Geigy Process for the production of new metallizable monoazo dyes and their metal compounds

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