http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-480693-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b04f5b6a02051c94d6eaf190b751ed2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B5-60 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B5-60 |
| filingDate | 1936-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1938-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-480693-A |
| titleOfInvention | Manufacture of oxazines of the anthraquinone series |
| abstract | Oxazines of the anthraquinone series are made by reacting a 1-halogenanthraquinone-2-sulphonic acid which may contain further substituents, radicals or atom groups in the anthraquinone nucleus, with a compound containing an amino group and a hydroxyl group in o-positions to each other, in the presence of an acid-binding agent, and advantageously in presence of copper or a copper compound, and if desired, sulphonating the products obtained. The reaction may take place in an aqueous or alcoholic medium, at temperatures between room temperature and 100 DEG C. and aminohydroxy compounds specified are those of the benzene, naphthalene, or anthraquinone series. The products dye wool or cotton blue or violet tints. In examples, the potassium salt of 1-iodanthraquinone-2-sulphonic acid is reacted in aqueous solution in presence of sodium carbonate and cuprous chloride with (1) o-aminophenol, followed by sulphonation; (2) sodium 2-hydroxy-3-amino-5-sulphobenzoate; (3) 3.5.6-trichloro-2-aminophenol-4-sulphonic acid; (4) 3.4.5.6-tetrachloro-2-aminophenol; (5) 6-chloro-2-aminophenol-4-sulphonic acid; (6) 4-chloro-2-aminophenol-6-sulphonic acid; (7) 3-amino - 4 - hydroxy - 1 - methylbenzene - 5-sulphonic acid; (8) 2-amino-4-acetaminophenol-6-sulphonic acid; and (9) 3-amino-4-hydroxybenzophenone-21-carboxylic acid, followed by ring-closure of the benzophenone part of the molecule by sulphuric acid to give a dianthraquinone oxazine which may also be obtained by condensing potassium 1-bromo (or iodo)-anthraquinone-2-sulphonate with 1-amino-2-hydroxyanthraquinones; (10) the potassium salt of 1-iodo-4-phenylaminoanthraquinone-2-sulphonic acid is condensed with 3.4.5.6-tetrachloro-2-aminophenol; (11) potassium 1-iodoanthraquinone-2.6-disulphonate is condensed with 5-amino-2.4-dihydroxybenzoic acid, (12) sodium-1 - bromanthraquinone-2-sulphonate is condensed with sodium 2-amino-4-nitrophenol-6-sulphonate or sodium 2-amino-6-nitrophenol-4-sulphonate, potassium 1-iodoanthraquinone-2-sulphonate is condensed with (13) sodium 3 - amino - 4 - hydroxydiphenylsulphone - 31 - sulphonate; and (14) sodium 1-hydroxy-2-aminonaphthalene-4-sulphonate; (15) sodium 1-bromanthraquinone-2.4-disulphonate is reacted with 2-amino-4-acetaminophenol; (16) sodium 1 - iodo - 4 - bromanthraquinone - 2 - sulphonate is reacted with sodium - 2 - amino - 4 - acetaminophenol-6-sulphonate; (17) sodium 1-amino-4-bromanthraquinone-3-sulphonate is condensed with o-aminophenol. |
| priorityDate | 1936-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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