GB344777A - Improvements in the manufacture and production of vat dyestuffs of the n-dihydro-1.2.2.1.-anthraquinoneazine series - Google Patents
Improvements in the manufacture and production of vat dyestuffs of the n-dihydro-1.2.2.1.-anthraquinoneazine seriesInfo
- Publication number
- GB344777A GB344777A GB2986029A GB2986029A GB344777A GB 344777 A GB344777 A GB 344777A GB 2986029 A GB2986029 A GB 2986029A GB 2986029 A GB2986029 A GB 2986029A GB 344777 A GB344777 A GB 344777A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dihydro
- nitrobenzene
- anthraquinoneazine
- manufacture
- series
- 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
Indanthrone dyes.-Halogenated vat dyestuffs are obtained by treating the products of the process of Specification 322,281, [Class 2 (iii), Dyes &c.], with halogens or agents supplying halogen, if desired, in the presence of solvents, catalysts, or acid-binding agents. According to examples, the product of example 1 of the said Specification is treated with sulphuryl chloride in nitrobenzene; and the product of example 3 of the said Specification is treated with sulphuryl chloride in nitrobenzene, chlorine in trichlorbenzene, bromine in nitrobenzene; and with chlorine in nitrososulphuric acid, to give probably the corresponding azine, which may be reduced with sodium bisulphite to the dihydro-compound. Specification 20527/04, [Class 2, Acids and salts, Organic &c.], also is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2986029A GB344777A (en) | 1929-10-02 | 1929-10-02 | Improvements in the manufacture and production of vat dyestuffs of the n-dihydro-1.2.2.1.-anthraquinoneazine series |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2986029A GB344777A (en) | 1929-10-02 | 1929-10-02 | Improvements in the manufacture and production of vat dyestuffs of the n-dihydro-1.2.2.1.-anthraquinoneazine series |
Publications (1)
Publication Number | Publication Date |
---|---|
GB344777A true GB344777A (en) | 1931-03-02 |
Family
ID=10298366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2986029A Expired GB344777A (en) | 1929-10-02 | 1929-10-02 | Improvements in the manufacture and production of vat dyestuffs of the n-dihydro-1.2.2.1.-anthraquinoneazine series |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB344777A (en) |
-
1929
- 1929-10-02 GB GB2986029A patent/GB344777A/en not_active Expired
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