GB191403796A - Process for Producing Azodyestuffs. - Google Patents
Process for Producing Azodyestuffs.Info
- Publication number
- GB191403796A GB191403796A GB191403796DA GB191403796A GB 191403796 A GB191403796 A GB 191403796A GB 191403796D A GB191403796D A GB 191403796DA GB 191403796 A GB191403796 A GB 191403796A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- naphthol
- sulphonic
- products
- diazotized
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
3796. Farbenfabriken vorm. F. Bayer & Co. March 11, 1913, [Convention date]. Samples furnished. Azo dyes; oxynaphthalene sulphonic esters and sulphonamides and derivatives thereof.-Azo dyes are obtained by combining diazo, diazoazo, or tetrazo compounds, or the intermediate products from one molecule of a tetrazo compound and one molecule of an azo dye component, with the products formed by condensing 2- naphthol-1-carboxylic-6-sulphochloride with phenols, naphthols. amines, aminophenols. aminonaphthols, or their carboxylic, sulphonic, &c. derivatives, and splitting off the carboxylic group if desired. If the carboxylic group is not previously removed, it splits off during the formation of the azo dye. Some of the above products are capable of coupling with two molecules of diazo compound. According to examples:-diazotized o-sulphanilic acid is combined with 2-naphthol-6-sulphophenolester giving an orange wool dye; the corresponding naphtholesters or the homologues, sulphonic acids, or substitution products of these esters may be used; 2-anisidine-4-sulphonic acid is diazotized and combined with 2-naphthol-6-sulphonanilide giving a yellowish-red wool dye; the condensation products with toludines, methylaniline, sulphanilic acid, naphthylamines, &c. may also be used; naphthionic acid is diazotized and combined with 2-naphtltol-6-sulphonyl-paminosalicylic acid, giving a red wool dye which yields bluish-red shades on after-treatment with chromium acetate; the condensation products with aminocresotinic acids, 5-sulpho-3-amino-6- oxybenzoic acid, aminophenols such as 4-chlor-2- aminophenol-6-sulphonic acid, &c. may be used; two molecules of aniline are diazotized and combined with the condensation product from the sulphochloride and 1-amino-8-naphthol-3:6-disulphonic acid, giving a yellowish-scarlet wool dye; condensation products from other aminonaphthol sulphonic acids, such as the 1:8:4:6- or the 2:5:7-acid, or aminonaphthols, for example 1-amino-7-naphthol, may be used. Specification 21,932/13 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE191403796X | 1913-03-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191403796A true GB191403796A (en) | 1914-06-25 |
Family
ID=32337750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191403796D Expired GB191403796A (en) | 1913-03-11 | 1914-02-13 | Process for Producing Azodyestuffs. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191403796A (en) |
-
1914
- 1914-02-13 GB GB191403796D patent/GB191403796A/en not_active Expired
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