GB298248A - Improvements in and relating to the production of an anthraquinone hydroazine dyestuff - Google Patents

Improvements in and relating to the production of an anthraquinone hydroazine dyestuff

Info

Publication number
GB298248A
GB298248A GB905327A GB905327A GB298248A GB 298248 A GB298248 A GB 298248A GB 905327 A GB905327 A GB 905327A GB 905327 A GB905327 A GB 905327A GB 298248 A GB298248 A GB 298248A
Authority
GB
United Kingdom
Prior art keywords
hydroazine
dyestuff
anthraquinone
chloranthraquinone
amino
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
GB905327A
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.)
Scottish Dyes Ltd
Original Assignee
Scottish Dyes 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 Scottish Dyes Ltd filed Critical Scottish Dyes Ltd
Priority to GB905327A priority Critical patent/GB298248A/en
Publication of GB298248A publication Critical patent/GB298248A/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
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
    • C09B5/44—Azines of the anthracene series
    • C09B5/46—Para-diazines
    • C09B5/48—Bis-anthraquinonediazines (indanthrone)
    • C09B5/52—Preparation by condensation of 1.2-halogeno-amino-anthraquinones

Landscapes

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

Abstract

298,248. Smith, W., Thomas, J., and Scottish Dyes, Ltd. April 1, 1927. Anthraquinone-hydroazines.-A dyestuff, which is apparently 3 : 3<1>-dichloranthraquinone-hydroazine and dyes cotton a bright reddish blue shade from a hydrosulphite vat, is obtained by brominating 2-amino-3-chloranthraquinone of M.Pt. 310-312‹ C., which may be obtained by the process described in Specification 264,916, and condensing the product in the presence of an acid absorber, e.g. sodium acetate, a copper salt, and a diluent. In an example, 1-brom-2-amino-3- chloranthraquinone, obtained by brominating the 2-amino-3- chloranthraquinone, is mixed with anhydrous sodium acetate and copper acetate, and heated with o-nitrotoluene; the product is apparently 3 : 3<1>-dichloranthraquinone-hydroazine. Specification 172,682 also is referred to.
GB905327A 1927-04-01 1927-04-01 Improvements in and relating to the production of an anthraquinone hydroazine dyestuff Expired GB298248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB905327A GB298248A (en) 1927-04-01 1927-04-01 Improvements in and relating to the production of an anthraquinone hydroazine dyestuff

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB905327A GB298248A (en) 1927-04-01 1927-04-01 Improvements in and relating to the production of an anthraquinone hydroazine dyestuff

Publications (1)

Publication Number Publication Date
GB298248A true GB298248A (en) 1928-10-01

Family

ID=9864476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB905327A Expired GB298248A (en) 1927-04-01 1927-04-01 Improvements in and relating to the production of an anthraquinone hydroazine dyestuff

Country Status (1)

Country Link
GB (1) GB298248A (en)

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