GB417258A - New dyestuff intermediates and azo dyes therefrom - Google Patents

New dyestuff intermediates and azo dyes therefrom

Info

Publication number
GB417258A
GB417258A GB883433A GB883433A GB417258A GB 417258 A GB417258 A GB 417258A GB 883433 A GB883433 A GB 883433A GB 883433 A GB883433 A GB 883433A GB 417258 A GB417258 A GB 417258A
Authority
GB
United Kingdom
Prior art keywords
chromium
coupled
amino
diazotized
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
GB883433A
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 GB883433A priority Critical patent/GB417258A/en
Publication of GB417258A publication Critical patent/GB417258A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Chromium compounds of amino-o-hydroxycarboxydiarylsulphones are made by treating at raised temperature an aminodiarylsulphone, carrying in o-position to one another a hydroxyl and a carboxyl group, with a chromium-providing compound, e.g. aqueous chromium fluoride. The sulphones produced by the processes of Specifications 245,865, 297,855, [both in Class 2 (iii)], and 417,252 may be used. In examples, (1) 2-amino-3<1>-hydroxy-4<1>-carboxydiphenylsulphone-4 -sulphonic acid is treated with the ennea hydrate of chromium fluoride. Azo dyes containing chromium are made by diazotizing the chromium compounds of the above aminodiarylsulphones and coupling with components. In further examples, (2)--(4) the chromium compound of 2 - amino - 3<1> - hydroxy - 4<1> - carboxydiphenylsulphone - 4 - sulphonic acid is diazotized and coupled with 1 -(2 : 5-dichloro-4-sulphophenyl)-3-methyl-5-pyrazolone (greenish yellow), b - naphthol (orange), 2 : 8 : 6-acid (bluish-red), H acid (coupled with 2 mols. of the diazo compound) (grey to reddish-grey); (5) the same chromium compound is diazotized and coupled with m-amino-p-cresol methylether, again diazotized and coupled with phenyl-J acid (red-violet). If the chromium-free aminosulphones are diazotized and coupled insoluble products are obtained on chroming.
GB883433A 1933-03-23 1933-03-23 New dyestuff intermediates and azo dyes therefrom Expired GB417258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB883433A GB417258A (en) 1933-03-23 1933-03-23 New dyestuff intermediates and azo dyes therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB883433A GB417258A (en) 1933-03-23 1933-03-23 New dyestuff intermediates and azo dyes therefrom

Publications (1)

Publication Number Publication Date
GB417258A true GB417258A (en) 1934-09-24

Family

ID=9860095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB883433A Expired GB417258A (en) 1933-03-23 1933-03-23 New dyestuff intermediates and azo dyes therefrom

Country Status (1)

Country Link
GB (1) GB417258A (en)

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