http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-430260-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/C09B5-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B5-24 |
| filingDate | 1933-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1935-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-430260-A |
| titleOfInvention | Manufacture of derivatives of the anthraquinone series containing nitrogen and sulphur |
| abstract | An oxidation product of an anthraquinonethiomorpholine compound containing the nuclear sulphur atom in the form of an SO2-group and also containing a substituent exchangeable for amino residues by reaction with amines, is reacted with an aromatic amine. The products are in part dyes and may be converted into water-soluble dyes by sulphonation. Reaction is effected in a diluent, preferably in presence of an acid-binding agent and a catalyst such as copper or a copper compound. The starting materials are prepared by oxidizing the thiomorpholine compounds (cf. Specifications 263,179, 263,795, and 263,843, [all in Class 2 (iii)]) for example with hydrogen peroxide, and nitrating or chlorinating or brominating the products. In examples: (1) the product obtained by oxidizing anthraquinone 1-2-dihydroparathiazine (cf. Specification 263,843) with peroxide and brominating in nitrobenzene (a 4-bromo derivative) is condensed with aniline, p-toluidine and 4-aminodiphenyl, followed by sulphonation in each case (blue to green shades); (2) a starting material is obtained by reacting monochloracetone with 1-amino-2-mercaptoanthraquinone, hydrogenating the product followed by oxidizing with peroxide and bromination in nitrobenzene (a 4-bromo derivative) or nitration in acetic acid (a 4-nitro derivative); either compound is condensed with p-toluidine and 4-aminodiphenyl followed by sulphonation in each case (blue and green-blue shades). |
| priorityDate | 1932-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.