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 dyestuffInfo
- 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
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.
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) |
-
1927
- 1927-04-01 GB GB905327A patent/GB298248A/en not_active Expired
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