ES272532A1 - Procedure for the preparation of tina colorants (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the preparation of tina colorants (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES272532A1 ES272532A1 ES0272532A ES272532A ES272532A1 ES 272532 A1 ES272532 A1 ES 272532A1 ES 0272532 A ES0272532 A ES 0272532A ES 272532 A ES272532 A ES 272532A ES 272532 A1 ES272532 A1 ES 272532A1
- Authority
- ES
- Spain
- Prior art keywords
- group
- hydrogen atoms
- formula
- diantrimidocarbazole
- symbols
- 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)
Abstract
Process for the preparation of vat dyes, containing at least one sulfonic acid group and at least one acylamino group, especially an aroylamino group, which process is characterized by the fact that: a) a diantrimidocarbazole of the formula ** (See formula) ** in which at least one x means a carboxylic acid amide group which is linked by its nitrogen atom to a chromophore, while the remaining X means hydrogen atoms or ordinary substituents and the symbols And they mean halogen or hydrogen atoms, they are treated with sulfonating agents until the introduction of at least one SO3H group; O well b) a corresponding diantrimidocarbazole having at least one sulfonyl halide group is subjected to mild hydrolysis; O well c) is converted into the corresponding carbazole, optionally with simultaneous or subsequent sulfonation, a diantrimide of the formula ** (See formula) ** in which at least one X means a carboxylic acid amide group optionally having 1 or 2 sulfonic acid groups and is linked by its nitrogen atom to a chromophore, while the remaining Xs mean hydrogen atoms or ordinary substituents and the symbols And they mean halogen or hydrogen atoms: d) a diantrimidocarbazole of the formula ** (See formula) ** in which an X at least means an acylatable amino group, while the remaining X means hydrogen atoms or ordinary substituents, and the symbols And they mean halogen or hydrogen atoms are acylated with acylating agents which, in addition to the acylating group, contain a sulphonic acid group or a group which in the reaction conditions is transformed into a sulphonic acid group; O well e) is treated with oxidizing agents, until the HS group is transformed into an HO3S group, an acylamino-diantrimidocarbazole of the formula indicated first, in which an acylamino group, at least, bears an HS group, for example a group HS-CH2. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1335660A CH398846A (en) | 1960-10-28 | 1960-11-29 | Process for the production of new vat dyes |
| CH106561 | 1961-01-30 | ||
| CH1265061A CH427105A (en) | 1961-11-01 | 1961-11-01 | Process for the production of new dyes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES272532A1 true ES272532A1 (en) | 1962-06-16 |
Family
ID=34527241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0272532A Expired ES272532A1 (en) | 1960-11-29 | 1961-11-28 | Procedure for the preparation of tina colorants (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES272532A1 (en) |
-
1961
- 1961-11-28 ES ES0272532A patent/ES272532A1/en not_active Expired
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