GB219280A - Manufacture of indigoid dyestuffs - Google Patents
Manufacture of indigoid dyestuffsInfo
- Publication number
- GB219280A GB219280A GB7622/24A GB762224A GB219280A GB 219280 A GB219280 A GB 219280A GB 7622/24 A GB7622/24 A GB 7622/24A GB 762224 A GB762224 A GB 762224A GB 219280 A GB219280 A GB 219280A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thionaphthisatin
- anil
- acenaphthenone
- dimethylamino
- 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
- C09B7/00—Indigoid dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Indole Compounds (AREA)
Abstract
Thioindigoid dyes are obtained by condensing 2 : 3-thionaphthisatin (see Specification 219,276), or its a -anil or a -halogen derivatives, with cyclic compounds containing a reactive methylene group such as indoxyls, thiondoxyls, acenaphthenone, or a -oxyanthracene; some of the products may be halogenated, preferably in a solvent or diluent such as nitrobenzene or sulphuric acid: the dyes dye animal and vegetable fibres from the hydrosulphite vat in tints varying from grey or blue to pure red. According to examples, dyestuffs are obtained from the following pairs of components, condensation being effected in alcohol or acetic acid:-a -(41-dimethylamino) anil or the a -dibromide of 2 : 3-thionaphthisatin and oxythionaphthene; 2 : 3-thionaphthisatin and 6-chlorothioindoxyl carboxylic acid; a -(41-dimethylamino)-anil of 2 : 3-thionaphthisatin and acenaphthenone or 2 : 3-naphthioindoxyl; in each case the products are then brominated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH219280X | 1923-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB219280A true GB219280A (en) | 1924-12-24 |
Family
ID=4451097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7622/24A Expired GB219280A (en) | 1923-07-18 | 1924-03-25 | Manufacture of indigoid dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB219280A (en) |
-
1924
- 1924-03-25 GB GB7622/24A patent/GB219280A/en not_active Expired
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