GB322184A - Process for the production of vat dyestuffs of the anthraquinone series and intermediate products therefor - Google Patents
Process for the production of vat dyestuffs of the anthraquinone series and intermediate products thereforInfo
- Publication number
- GB322184A GB322184A GB2128428A GB2128428A GB322184A GB 322184 A GB322184 A GB 322184A GB 2128428 A GB2128428 A GB 2128428A GB 2128428 A GB2128428 A GB 2128428A GB 322184 A GB322184 A GB 322184A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bis
- converted
- sulphur
- acid
- phenylmercaptomethyliminoanthraquinone
- 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
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
- C09B5/30—1,2 azoles of the anthracene series
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
322,184. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 23, 1928. Anthraquinone dithiazoles; arylmercaptoiminoanthraquinones.-The imidechlorides of 2.6-diaroyldiaminoanthraquinones are converted into C-diaryl-2.1-(S) : 6.5-(S)-anthraquinonedithiazoles by treatment with sulphur or agents yielding sulphur. If this treatment is carried out under mild conditions, for example at low temperatures, 2.6 - bis-arylmercaptomethylaminoanthraquinones are first obtained and may be converted to the above dithiazoles by treating with acid or alkaline dehydrogenating agents such as sulphuric acid, chlorsulphonic acid, to which substances may be added an oxidizing agent, or potassium hydroxide solution containing potassium ferricyanide. In examples, 2.6-bis-phenylmercaptomethyliminoanthraquinone is heated (1) in naphthalene with sulphur to give C-diphenyl-2.1- (S) : 6.5-(S)-anthraquinonedithiazole (2) with alcoholic potash saturated with sulphuretted hydrogen to yield 2.6-bis-phenylmercaptomethyliminoanthraquinone; the latter compound is converted to the dithiazole obtained (1) by heating with sulphuric acid or other oxidizing agent. The imidechlorides may be prepared by the action of phosphorus pentachloride on the 2.6-diaryldiaminoanthraquinones. Specification 21615/12 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2128428A GB322184A (en) | 1928-07-23 | 1928-07-23 | Process for the production of vat dyestuffs of the anthraquinone series and intermediate products therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2128428A GB322184A (en) | 1928-07-23 | 1928-07-23 | Process for the production of vat dyestuffs of the anthraquinone series and intermediate products therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB322184A true GB322184A (en) | 1929-11-25 |
Family
ID=10160290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2128428A Expired GB322184A (en) | 1928-07-23 | 1928-07-23 | Process for the production of vat dyestuffs of the anthraquinone series and intermediate products therefor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB322184A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589191A (en) * | 2013-11-08 | 2014-02-19 | 上海华元实业总公司 | Novel method for post-processing vat yellow GCN |
-
1928
- 1928-07-23 GB GB2128428A patent/GB322184A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589191A (en) * | 2013-11-08 | 2014-02-19 | 上海华元实业总公司 | Novel method for post-processing vat yellow GCN |
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