GB190102913A - The Manufacture or Production of New Basic Dye-stuffs. - Google Patents
The Manufacture or Production of New Basic Dye-stuffs.Info
- Publication number
- GB190102913A GB190102913A GB190102913DA GB190102913A GB 190102913 A GB190102913 A GB 190102913A GB 190102913D A GB190102913D A GB 190102913DA GB 190102913 A GB190102913 A GB 190102913A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyes
- condensed
- methylketole
- diamidobenzophenone
- alpha
- 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
Landscapes
- Indole Compounds (AREA)
- Coloring (AREA)
Abstract
2913. Newton, H. E., [Farbenfabriken vorm. F. Bayer & Co.]. Feb. 11. Dyes, artificial.-Basic dyes which yield red to violet and blue shades upon silk, wool, and tanninmordanted cotton, are produced as follows :-(1) p-Diamidobenzophenone, or an alkyl derivative thereof, or a thioketone or auramine corresponding thereto, is condensed in the presence of an acid such as hydrochloric acid, with alpha-methylindole (methylketole), alpha-phenylindole, or their derivatives which are halogenated or alkylated in the benzene nucleus. The dyes are precipitated by pouring the mixture into ice-water containing common salt. Examples are given in which p-diamidobenzophenone, its tetramethyl or tetraethyl derivatives, and auramine-G, are respectively condensed with methylketole ; and tetramethyl- and tetraethyl-diamidobenzophenone are respectively condensed with Pr2B3 dimethylindole, Pr2-methyl-B3-chloroindole, alpha-phenylindole, Pr2-phenyl-B3-methylindole, and Pr2-phenyl-B3-chloroindole. (2) If the ketones used in the first process are replaced by the corresponding hydrols, leuco bases are produced which are converted into dyes by oxidation. An example is given in which tetraethyldiamidobenzhydrol is condensed with methylketole in hot alcohol and hydrochloric acid, and the leuco base produced is precipitated and then oxidized by means of ferric chloride.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190102913T | 1901-02-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190102913A true GB190102913A (en) | 1901-12-21 |
Family
ID=32420865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190102913D Expired GB190102913A (en) | 1901-02-11 | 1901-02-11 | The Manufacture or Production of New Basic Dye-stuffs. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190102913A (en) |
-
1901
- 1901-02-11 GB GB190102913D patent/GB190102913A/en not_active Expired
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