GB289241A - Manufacture of sulphur dyestuffs - Google Patents
Manufacture of sulphur dyestuffsInfo
- Publication number
- GB289241A GB289241A GB862427A GB862427A GB289241A GB 289241 A GB289241 A GB 289241A GB 862427 A GB862427 A GB 862427A GB 862427 A GB862427 A GB 862427A GB 289241 A GB289241 A GB 289241A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphocyano
- derivative
- dyestuff
- diphenylamine
- oxy
- 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
- C09B49/06—Sulfur dyes from azines, oxazines, thiazines or thiazoles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
289,241. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). March 29, 1927. Sulphuretted dyes are produced by treating an amino-or oxy-aryl compound with free sulphocyanogen or a compound yielding the same and converting the resulting sulphocyano derivative into the corresponding thiophenol or disulphide. According to one example, 8-oxy-1 : 2-naphthophenazine is converted into its sulphocyano derivative by the process of Specification 240,420, namely by treatment with sulphuryl chloride and lead sulphocyanide in the presence of carbon tetrachloride. The leuco dyestuff or the dyestuff itself is then obtained by boiling with sodium disulphide or caustic soda and precipitating the product by passing in air or by adding acetic or other acid. According to other examples sulphuretted dyes are prepared in a similar manner from the sulphocyano derivatives of 8: 8<1>-diaxy-1 : 2 : 1<1> : 2<1>-dinaphthazine, tolusafranine and tri (diphenylamine) methane hydrochloride. With the exception of the sulphocyano derivative of tri (diphenylamine) methane which is a dyestuff, the sulphocyano derivatives are in general insoluble resinous products.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB862427A GB289241A (en) | 1927-03-29 | 1927-03-29 | Manufacture of sulphur dyestuffs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB862427A GB289241A (en) | 1927-03-29 | 1927-03-29 | Manufacture of sulphur dyestuffs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB289241A true GB289241A (en) | 1928-04-26 |
Family
ID=9856043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB862427A Expired GB289241A (en) | 1927-03-29 | 1927-03-29 | Manufacture of sulphur dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB289241A (en) |
-
1927
- 1927-03-29 GB GB862427A patent/GB289241A/en not_active Expired
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