GB295645A - Process for the manufacture of vat dyestuffs of the anthraquinone series - Google Patents
Process for the manufacture of vat dyestuffs of the anthraquinone seriesInfo
- Publication number
- GB295645A GB295645A GB1302427A GB1302427A GB295645A GB 295645 A GB295645 A GB 295645A GB 1302427 A GB1302427 A GB 1302427A GB 1302427 A GB1302427 A GB 1302427A GB 295645 A GB295645 A GB 295645A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vat
- amino
- dyes
- reduced
- acid
- 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
- C09B5/34—Anthraquinone acridones or thioxanthrones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
295,645. Carpmael, W., (I, G. Farbenindustrie Akt.-Ges.). May 14, 1927. Anthraquinoneacridones.-Diphthalylacridones are converted into new vat dyes by treating them with nitrating agents, e.g. concentrated nitric acid or a mixture of nitric and sulphuric acids. The products may be reduced to the amino derivatives; both the nitro and amino compounds dye cotton from the vat, usually in greyish-blue shades. The aminoderivatives can also be acylated, yielding grey vat dyes of particularly good fastness properties. In examples, (1) 3 : 4 : 5 : 6-diphthalylacridone is heated with nitric acid, the nitroacridone separates out on cooling and may be reduced to the aminoacridone by means of aqueous sodium hydrosulphite solution, advantageously in the presence of alcohol; on treating the amino compound with benzoyl chloride, in nitrobenzene solution a dyestuff is obtained which dyes cotton from the vat in very fast violet-grey shades, and (2) 1 : 2 : 5 : 6- diphthalylacridone (obtainable by condensing 1- chlorawthraquinone-2-carboyic acid with 2- aminoanthraquinone and subsequently closing the ring by means of sulphuric acid) is nitrated by means of a mixture of nitric, and sulphuric acids and the product is reduced to the, amino' compound by reduction with alkaline hydrosulphite and subsequent blowing out of the vat with air; the benzoyl derivative dyes cotton from the vat, in fast olive-green shades. Specification 894/11 and German Specification 268,219 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1302427A GB295645A (en) | 1927-05-14 | 1927-05-14 | Process for the manufacture of vat dyestuffs of the anthraquinone series |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1302427A GB295645A (en) | 1927-05-14 | 1927-05-14 | Process for the manufacture of vat dyestuffs of the anthraquinone series |
Publications (1)
Publication Number | Publication Date |
---|---|
GB295645A true GB295645A (en) | 1928-08-14 |
Family
ID=10015404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1302427A Expired GB295645A (en) | 1927-05-14 | 1927-05-14 | Process for the manufacture of vat dyestuffs of the anthraquinone series |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB295645A (en) |
-
1927
- 1927-05-14 GB GB1302427A patent/GB295645A/en not_active Expired
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