| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e0f4f8190960626ec922a1f03bcd4aba |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-822
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-645
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-46 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-1805
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F15-008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C237-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2404 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C237-26 |
| filingDate |
1990-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c71a1c3d02d672d94f337f5e2a34b227
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79d55265dc7af466d9bdd78a3586b81f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f5df9bbdc247bbf13a9f75ea8d207ee |
| publicationDate |
1991-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4990636-A |
| titleOfInvention |
Process for the production of alpha-6-deoxytetracyclines and hydrogenation catalyst useful therein |
| abstract |
A coordination compound useful as a hydrogenation catalyst, having the formula: <IMAGE> (I) wherein Ph is phenyl; R is hydrogen or C1-C4 alkyl; and X is chloro, bromo or iodo. This compound is particularly useful as a homogeneous hydrogenation catalyst in the production of alpha-6-deoxytetracyclines, particularly the antibiotic doxycycline. The desired alpha-6-deoxy product is produced in high yields and stereospecificities, the process requiring the use of minimal quantities of rhodium metal in the hydrogenation catalyst per mole of the 6-methylenetetracycline hydrogenated. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108440329-A |
| priorityDate |
1988-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |