GB467183A - Manufacture of anthraquinone derivatives - Google Patents
Manufacture of anthraquinone derivativesInfo
- Publication number
- GB467183A GB467183A GB3435935A GB3435935A GB467183A GB 467183 A GB467183 A GB 467183A GB 3435935 A GB3435935 A GB 3435935A GB 3435935 A GB3435935 A GB 3435935A GB 467183 A GB467183 A GB 467183A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- carboxylic acid
- isothiazolanthrone
- anthraquinone
- acid chloride
- 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
- C09B5/02—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic ring being only condensed in peri position
- C09B5/10—Isothiazolanthrones; Isoxazolanthrones; Isoselenazolanthrones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
An amino-isothiazolanthrone or an amino-anthra-di-isothiazole is treated with an acylating agent of which the acyl group is the residue of an anthraquinone carboxylic acid which does not contain a nitrogenous group in the heteronucleus (i.e. the ring not containing the carboxyl group). A product specified is 4-(1<1>-anthraquinonoyl)-amino-1.9-isothiazolanthrone. Solvents, acid binding agents, or catalysts may be used, in an open vessel or under pressure. The products may be converted into leuco-derivatives. The products are intermediates or dyes which produce fast, strong dyeings and printings on vegetable fibres. In examples, 5-amino-1.9-isothiazolanthrone is condensed with (1) anthraquinone-2 (or 1)-carboxylic acid chloride; (2) 1-chloroanthraquinone-2-carboxylic acid chloride; (3) 1-amino (or benzoylamino) anthraquinone-2-carboxylic acid chloride; (4) 4.8-diamino-1.9.5.-10-anthra-diisothiazole is condensed with anthraquinone-2-carboxylic acid chloride; (5) 4 - amino - 1.9 - isothiazolanthrone is condensed with 1-aminoanthraquinone-2-carboxylic acid chloride; (6) anthraquinone-2-carboxylic acid chloride may be condensed with 4 (or 8 or 6)-amino-1.9-isothiazolanthrone, or 5-amino-8-methoxy- or 5-amino-8-chloro-1.9-isothiazolanthrone. Two examples are given of the dyeing of cotton yellow shades using the dyestuff produced in (1) above. 4.8 - Diamino - 1.9.5.10 - anthra-di-isothiazole is prepared by sulphonating 1.5-diaminoanthraquinone with fuming sulphuric acid in presence of boric acid, and heating the sodium salt of the 1.5-diaminoanthraquinone-4.8-disulphonic acid so obtained with sodium sulphide, sulphur and ammonia for 10 hours at 100 DEG C. The Provisional Specification refers to treating the products with sulphuric acid, an aldehyde such as formaldehyde or a halogenating agent to yield further valuable products.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3435935A GB467183A (en) | 1935-12-11 | 1935-12-11 | Manufacture of anthraquinone derivatives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3435935A GB467183A (en) | 1935-12-11 | 1935-12-11 | Manufacture of anthraquinone derivatives |
Publications (1)
Publication Number | Publication Date |
---|---|
GB467183A true GB467183A (en) | 1937-06-11 |
Family
ID=10364655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3435935A Expired GB467183A (en) | 1935-12-11 | 1935-12-11 | Manufacture of anthraquinone derivatives |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB467183A (en) |
-
1935
- 1935-12-11 GB GB3435935A patent/GB467183A/en not_active Expired
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