http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3300142-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5ec1b9394322c98f969b5fef82c78c9d http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f973c4515b404cb79c632a8b0b6a6ce3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0dc3272555f72fd0b3d9b99ad0cdbe58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_22d704ff4913ee3fb05f61b389c86f5b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D221-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C63-48 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D221-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-48 |
| filingDate | 1983-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c59563df48a9557392d003fe2d4bd2ba http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3cdcf7e13b60f7a5bb9b1f0c27ce89ba http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f93494121b3c968552e6afed2e38607 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fa2071a930d78662764d39da420a5eda |
| publicationDate | 1984-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-3300142-A1 |
| titleOfInvention | METHOD FOR PRODUCING 1,1'-DINAPHTHYL-4,4 ', 5,5', 8,8'-HEXACARBONIC ACID DERIVATIVES |
| abstract | The invention relates to processes for the preparation of derivatives of the polynuclear, polybasic aromatic carboxylic acids, in particular to a process for the preparation of 1,1'-dinaphthyl-4,4',5,5',8,8'-hexacarboxylic acid derivatives of the general formula <IMAGE> in which X represents oxygen or N-C6H3RR', R represents H or alkyl having 1 to 4 carbon atoms, R' represents H, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms or halogen. The process consists according to the invention of diazotising 1-aminonaphthalene-4,5,8-tricarboxylic acid derivatives of the general formula <IMAGE> in which X has the above-mentioned meanings, with an alkali metal nitrite at a temperature of 0 to 15 DEG C and a pH of the medium of 0 to 2 and then subjecting the diazo compound obtained to a diaryl condensation under the action of a copper(I)/ammonia complex in an amount from 2 to 2.5 mol, relative to copper(I), per 1 mol of compound of the general formula II at a temperature of 5 to 25 DEG C and a pH of the medium of 8 to 10 and then isolating the final product by treatment with an inorganic acid. The said compounds are dyes which are used for the printing of fabrics made of cotton, flax fibre, viscose or acetate staple fibre, synthetic fibres and blends thereof, and for the dyeing of the fabrics composed of the said fibres. |
| priorityDate | 1983-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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