GB309454A - - Google Patents
Info
- Publication number
- GB309454A GB309454A GB309454DA GB309454A GB 309454 A GB309454 A GB 309454A GB 309454D A GB309454D A GB 309454DA GB 309454 A GB309454 A GB 309454A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- bromoanthraquinone
- heated
- parent specification
- yellow
- 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.)
- Active
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
309,454. I. G. Farbenindustrie Akt.- Ges. April 10. 1928, [Convention date]. Addition to 309,193. Anthraquinone vat dyes.-The process of the parent Specification is modified by using 2- amino-3-halogenanthraquinones or substitution product thereof as starting materials. When these are heated in an indifferent solvent with cuprous cyamide the corresponding 2-amino-3-cyanoanthraquinone is formed and undergoes further conversion to give the new compounds described in the parent Specification. In examples 2- amino-3-bromoanthraquinone, 1 : 2-diamino-3- bromoanthraquinone and 1: 3-dibromo-2-aminoanthraquinone are heated in quinoline in presence of cuprous cyanide to give products which dye cotton from the vat in orange-yellow, chocolate-brown, and yellow shades respectively.
Publications (1)
Publication Number | Publication Date |
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GB309454A true GB309454A (en) |
Family
ID=1742344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB309454D Active GB309454A (en) |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB309454A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2573811A (en) * | 1950-01-03 | 1951-11-06 | Celanese Corp | Process for producing 1 amino 2, 3 dicyano 4 oxyalkylamino anthraquinones |
US2573733A (en) * | 1950-01-03 | 1951-11-06 | Celanese Corp | Production of anthraquinone dyestuffs |
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0
- GB GB309454D patent/GB309454A/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2573811A (en) * | 1950-01-03 | 1951-11-06 | Celanese Corp | Process for producing 1 amino 2, 3 dicyano 4 oxyalkylamino anthraquinones |
US2573733A (en) * | 1950-01-03 | 1951-11-06 | Celanese Corp | Production of anthraquinone dyestuffs |
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