GB441412A - Anthraquinone dyestuffs and process for their manufacture - Google Patents

Anthraquinone dyestuffs and process for their manufacture

Info

Publication number
GB441412A
GB441412A GB23209/34A GB2320934A GB441412A GB 441412 A GB441412 A GB 441412A GB 23209/34 A GB23209/34 A GB 23209/34A GB 2320934 A GB2320934 A GB 2320934A GB 441412 A GB441412 A GB 441412A
Authority
GB
United Kingdom
Prior art keywords
products
anilido
amino
sulphonated
referred
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
GB23209/34A
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
Application filed by Sandoz AG filed Critical Sandoz AG
Publication of GB441412A publication Critical patent/GB441412A/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
    • C09B6/00—Anthracene dyes not provided for above

Landscapes

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

Abstract

Sulphonated phenyl - or naphthylamino - anthraquinones containing in the aryl nucleus a free p-position, are oxidized to new condensation products which are sulphonated anthraquinonylamino derivatives of diphenyl and dinaphthyl. Specification 8509/12, [Class 2 (iii)], is referred to. The products dye animal fibres blue shades and if insufficiently soluble, may be further sulphonated in known manner. According to examples the following compounds are oxidized by means of manganese dioxide, lead dioxide, or quinone in sulphuric acid, chromic acid or persulphates, to the corresponding diaryl derivatives:--1-amino-4-anilido-anthraquinone-2-sulphonic acid, and the corresponding 4-o-chloranilido-a -naphthylamino, m-toluido-, o-anisidido, and -o-toluidoderivatives, 1 - amino - 4 - anilidoanthraquinone - 2 : 5 - disulphonic acid, 1-amino-2-sulpho-4-anilido-5-hydroxyanthraquinone (obtained by condensing the 5-OH-2 : 4-di-Brcompound with aniline and subsequent treatment with sulphite, and 4 - anilido - 2 - sulpho - 1 - carbethoxy anthrapyridone. Specification 380,078 also is referred to. Further groups which may substitute the anthraquinone nucleus include the halogens, and in the aryl nucleus, the sulpho group. A further sulphonation of some of the diphenyl and dinaphthyl products is referred to. The Specification as open to inspection under Sect. 91 refers also to the introduction of up to 6 sulphonic groups into the products. This subject-matter does not appear in the Specification as accepted.
GB23209/34A 1934-02-16 1934-08-10 Anthraquinone dyestuffs and process for their manufacture Expired GB441412A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE441412X 1934-02-16

Publications (1)

Publication Number Publication Date
GB441412A true GB441412A (en) 1936-01-20

Family

ID=6516188

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23209/34A Expired GB441412A (en) 1934-02-16 1934-08-10 Anthraquinone dyestuffs and process for their manufacture

Country Status (1)

Country Link
GB (1) GB441412A (en)

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