GB190629765A - Manufacture of Vat Dyestuffs. - Google Patents
Manufacture of Vat Dyestuffs.Info
- Publication number
- GB190629765A GB190629765A GB190629765DA GB190629765A GB 190629765 A GB190629765 A GB 190629765A GB 190629765D A GB190629765D A GB 190629765DA GB 190629765 A GB190629765 A GB 190629765A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acids
- dichlor
- carboxylic
- phenylthioglycollico
- chlorphenylthioglycollic
- 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
29,765. Imray, O., [Farbwerke vorm. Meister, Lucius, & Br³mng]. Dec. 31. Dyes, artificial.-Vat dye-stuffs of the thioindigo series are obtained by heating phenylthioglycollico-carboxylic acid or its homologues (tolyl-, xylyl-, &c.), or the halogen substitution products thereof, with a bisulphite solution at temperatures above 150‹ C. under pressure. Examples are given of the production of dyes from phenylthioglycollico-carboxylic acid, 1:2:4- and 1 : 2: 5-tolylthioglycollic - o - carboxylic acids, and 1 : 2 : 4- and 1 : 2 : 5 - chlorphenylthioglycollic - o - carboxylic acids ; the dichlor derivatives or the brom derivatives may also be employed. Chlorphenylthioglycollic-o-carboxylic acids.-The 1 : 2 : 4- and 1 : 2 : 5-acids may be obtained from the corresponding chloranthranilic acids, and the dichlor-acids from the dichloranthranilic acids, obtainable by chlorinating anthranilic acid, or by chlorinating o-acettoluidide, oxidizing the dichlor derivative, and hydrolyzing the product.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190629765T | 1906-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190629765A true GB190629765A (en) | 1907-12-12 |
Family
ID=32258126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190629765D Expired GB190629765A (en) | 1906-12-31 | 1906-12-31 | Manufacture of Vat Dyestuffs. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190629765A (en) |
-
1906
- 1906-12-31 GB GB190629765D patent/GB190629765A/en not_active Expired
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