| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_046e16bd6918ef3cd62184605b15a413 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-395
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-403
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-62 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-395
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-403
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-24 |
| filingDate |
1990-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1992-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d1d34da34f8291c3ac2f4fcf465bbd2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86e7f83cb01081b0ba4818aa3e6935aa |
| publicationDate |
1992-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5081310-A |
| titleOfInvention |
Process for preparing optically active ketones |
| abstract |
A process for preparing an optically active ketone represented by formula (I): ##STR1## wherein R 1 represents a hydrogen atom or an alkyl group having from 1 to 5 carbon atoms; and n represents 1 or 2, n which comprises asymmetrically hydrogenating an α, β-unsaturated ketone represented by formula (II): ##STR2## wherein R 1 and n are as defined above, in the presence of a ruthenium-optically active phosphine complex as a catalyst. An optically active ketone having a high optical purity can be prepared. |
| priorityDate |
1989-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |