| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0baed56582029679f64834c300bfcbee |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D221-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B5-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B5-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D217-24 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B5-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D217-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B5-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D221-18 |
| filingDate |
1976-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a5fcfcdc106f4084b4b94a7fd26a2569
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f14a187684ce2962a36bd3f97b33e92
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74c822847ca6ae52d74f4218608690ed |
| publicationDate |
1977-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4011227-A |
| titleOfInvention |
O-(3-hydroxy-1-isoquinolinyl)-benzoic acid |
| abstract |
7-OXO-7H-dibenzo-[d e,h]-quinolin-2-ol which is useful as an intermediate in the preparation of dyestuffs is prepared by cycloisomerizing the novel compound, N-phenylacetyl phthalimide in an inert solvent and in the presence of a Friedel-Crafts catalyst to form the novel compound O-(3-hydroxy-1-isoquinolinyl)-benzoic acid which is then cyclized by dehydrating condensation to form the 7-oxo-7H-dibenzo-[d e,h]-quinolin-2-ol. |
| priorityDate |
1974-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |