GB347236A - Improvements in the manufacture and production of vat dyestuffs - Google Patents

Improvements in the manufacture and production of vat dyestuffs

Info

Publication number
GB347236A
GB347236A GB3605829A GB3605829A GB347236A GB 347236 A GB347236 A GB 347236A GB 3605829 A GB3605829 A GB 3605829A GB 3605829 A GB3605829 A GB 3605829A GB 347236 A GB347236 A GB 347236A
Authority
GB
United Kingdom
Prior art keywords
aldehyde
aminoanthraquinone
group
products
chlorbenzanthrone
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
GB3605829A
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 GB3605829A priority Critical patent/GB347236A/en
Publication of GB347236A publication Critical patent/GB347236A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/02—Benzathrones
    • C09B3/06—Preparation from starting materials already containing the benzanthrone nucleus
    • C09B3/10—Amino derivatives

Landscapes

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

Abstract

Benzanthrone derivatives.-Derivatives of benzanthrone as defined in the parent Specification in which an anthraquinone radicle containing an aldehyde group is attached by means of an NH group to the benzanthronyl radicle are treated with alkaline condensing agents. The most valuable products are those derived from starting materials in which the aldehyde group is in o-position to the imino group. In examples the alkali fusion of the condensation products from 8-chlorbenzanthrone and 1 - aminoanthraquinone - 2 - aldehyde, 6 - chlorbenzanthrone and 1-aminoanthraquinone-2-aldehyde, and dibrom-2.21-dibenzanthronyl (which may be produced by bromination of 2.21-dibenzanthronyl) and 1-aminoanthraquinone-2-aldehyde (2 mols.) is described; the products dye grey to black shades. The starting materials may generally be prepared by condensation of negatively substituted or aminobenzanthrones with amino- or negatively substituted anthraquinone aldehydes respectively.
GB3605829A 1929-11-25 1929-11-25 Improvements in the manufacture and production of vat dyestuffs Expired GB347236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3605829A GB347236A (en) 1929-11-25 1929-11-25 Improvements in the manufacture and production of vat dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3605829A GB347236A (en) 1929-11-25 1929-11-25 Improvements in the manufacture and production of vat dyestuffs

Publications (1)

Publication Number Publication Date
GB347236A true GB347236A (en) 1931-04-27

Family

ID=10384466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3605829A Expired GB347236A (en) 1929-11-25 1929-11-25 Improvements in the manufacture and production of vat dyestuffs

Country Status (1)

Country Link
GB (1) GB347236A (en)

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