GB447890A - Manufacture of dyestuffs - Google Patents
Manufacture of dyestuffsInfo
- Publication number
- GB447890A GB447890A GB692/36A GB69236A GB447890A GB 447890 A GB447890 A GB 447890A GB 692/36 A GB692/36 A GB 692/36A GB 69236 A GB69236 A GB 69236A GB 447890 A GB447890 A GB 447890A
- Authority
- GB
- United Kingdom
- Prior art keywords
- trichlorbenzene
- pyrenequinone
- anisidine
- cotton
- products
- 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
- C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
- C09B3/50—Dibenzopyrenequinones
- C09B3/54—Preparation from starting materials already containing the dibenzopyrenequinone nucleus
- C09B3/56—Amino derivatives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/02—Ortho- or ortho- and peri-condensed systems
- C07C2603/40—Ortho- or ortho- and peri-condensed systems containing four condensed rings
- C07C2603/42—Ortho- or ortho- and peri-condensed systems containing four condensed rings containing only six-membered rings
- C07C2603/50—Pyrenes; Hydrogenated pyrenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Abstract
A tetrahalogenpyrenequinone obtained by halogenating pyrenequinone is reacted with an amine having at the nitrogen atom at least one replaceable hydrogen atom to give products which are vat-dyes for vegetable fibres such as cotton. Condensation may be effected in the presence of a diluent such as amyl alcohol, nitrobenzene, tetrachlorethane, chlornaphthalene, benzene, trichlorbenzene, pyridine and in presence of an agent which binds acid with or without addition of a substance which promotes splitting off of hydrogen halide, for instance, copper or sulphur. In examples, various tetrahalogenpyrenequinones obtained according to Specification 443,408 or by brominating the pyrenequinone in concentrated sulphuric acid or chlorinating it in trichlorbenzene containing a little iodine or antimony pentachloride are condensed with aniline, p - anisidine, b - naphthylamine, 2.5 - dichloraniline, o-anisidine, benzidine and 3-chlor-4-aminotoluene, and a further example is given illustrating the dyeing of cotton with one of the products.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH447890X | 1934-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB447890A true GB447890A (en) | 1936-05-27 |
Family
ID=4515383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB692/36A Expired GB447890A (en) | 1934-07-07 | 1935-07-08 | Manufacture of dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB447890A (en) |
-
1935
- 1935-07-08 GB GB692/36A patent/GB447890A/en not_active Expired
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