GB353422A - Manufacture of new vat dyes - Google Patents
Manufacture of new vat dyesInfo
- Publication number
- GB353422A GB353422A GB1223330A GB1223330A GB353422A GB 353422 A GB353422 A GB 353422A GB 1223330 A GB1223330 A GB 1223330A GB 1223330 A GB1223330 A GB 1223330A GB 353422 A GB353422 A GB 353422A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tetrachlorthiophen
- anthranol
- alizarine
- naphthalene
- vat dyes
- 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
- C09B49/00—Sulfur dyes
- C09B49/12—Sulfur dyes from other compounds, e.g. other heterocyclic compounds
- C09B49/124—Sulfur dyes from other compounds, e.g. other heterocyclic compounds from polycarbocyclic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Anthraquinone vat dyes, dyeing in green shades, are obtained by the interaction of a hydroxylated anthranol derived from alizarine with a tetra-halogenothiophen, either simultaneously with, or subsequent to, alkylation; in the latter case the alkylation must be partial only, so that a free hydroxyl group is present. The reaction is effected in the presence of a solvent or diluent, such as trichlorbenzene or naphthalene, and an acid-binding agent may be added if desired. The products may be halogenated to produce further vat dyes. In examples, (1) alizarine is reduced to the anthranol with zinc dust and ammonia, and the product heated with commercial trichlorbenzene, containing tetrachlorthiophen, sodium carbonate, and dimethylsulphate, (2) the anthranol obtained from alizarine is heated with tetrachlorthiophen, naphthalene, dimethylsulphate and sodium carbonate, and (3) 4-hydroxy-3-methoxyanthranol is heated with tetrachlorthiophen or tetrabromthiophen in naphthalene. The same product is obtained in all the examples, the whole of the halogen being eliminated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1223330A GB353422A (en) | 1930-04-17 | 1930-04-17 | Manufacture of new vat dyes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1223330A GB353422A (en) | 1930-04-17 | 1930-04-17 | Manufacture of new vat dyes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB353422A true GB353422A (en) | 1931-07-17 |
Family
ID=10000800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1223330A Expired GB353422A (en) | 1930-04-17 | 1930-04-17 | Manufacture of new vat dyes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB353422A (en) |
-
1930
- 1930-04-17 GB GB1223330A patent/GB353422A/en not_active Expired
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