http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5003051-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79751aeaa9923745648e5ae7d9c35782 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B41-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P3-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B45-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B41-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B45-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B45-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P3-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B45-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P1-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-46 |
| filingDate | 1989-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1991-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc57511a56b3aa112d80b7ce919214aa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3d3bb7d41f3afcb189f488ad4a1b052 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_859ed146bcc609f0ee19cf9ffb19a937 |
| publicationDate | 1991-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5003051-A |
| titleOfInvention | Process for the preparation of metallizable monoazo dyes in the presence of ketones |
| abstract | A process for the preparation of azo dyes of the formula <IMAGE> (1) in which X is -NH2 or -OH, A is a benzene or naphthalene radical which can be substituted by nitro, halogen, sulfo, C2-C6alkanoylamino, C1-C6-alkoxycarbonylamino, sulfonamido and sulfone groups and B is a benzene radical which is monosubstituted or disubstituted by C1-C6alkyl, or a naphthalene radical which can be substituted by amino, phenylamino, C1-C6alkylamino and sulfo, or a 1-phenyl-3-methyl-5-pyrazlone radical which can be substituted by halogen, C1-C6alkyl and C1-C6alkoy, these radicals being bound to the azo group in the o-position with respect to the hydroxyl or amino groups, comprises diazotizing in aqueous solution an amine of the formula <IMAGE> (2) in the presence of at least one ketone of the formula <IMAGE> (3) in which R1 and R2, independently of one another, are each C1-C4alkyl, and coupling the product on to a coupling component of the formula <IMAGE> (4) in which A, B and X in formulae (2) and (4) are as defined in formula (1). The present invention makes it possible to prepare the azo dyes mentioned in high yields. |
| priorityDate | 1988-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 186.