| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8381805eba6d034fc77bd230dd02e6e2 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-1805
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-543 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-1892
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2265
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-223
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F11-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C6-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-18
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/B01J31-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F11-00 |
| filingDate |
1999-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c223655062b795e1addfc991d6f17715
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57658bae1fb15ec19915425be1bbaf56 |
| publicationDate |
2000-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1056756-A1 |
| titleOfInvention |
Asymmetric ring-closing metathesis reactions |
| abstract |
A composition and method for the catalytic conversion of a racemic mixture of dienes to a cyclic olefin by a ring-closing metathesis (RCM) reaction are disclosed. The composition, a transition metal complex with an M=C reaction site, contains a bidentate dialkoxide of at least 80 % optical purity. Because the M=C reaction site is of a sufficient shape specificity, conferred in part by the dialkoxide of sufficient rigidity and an M=N-R1 site, reacting the composition with a mixture of two enantiomeric dienes results in an olefin metathesis product that has at least a 50 % enantiomeric excess of one enantiomer in the mixture. A method is also provided for reacting a composition with a racemic diene mixture to generate a metathesis product that has an enantiomeric excess of at least 50 %. |
| priorityDate |
1998-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |