http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110343040-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B2200-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-16 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-347 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2404 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-347 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C61-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-747 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-24 |
| filingDate | 2018-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110343040-B |
| titleOfInvention | Method for preparing chiral trans-first chrysanthemic acid |
| abstract | The invention provides a method for preparing chiral trans-first chrysanthemic acid, belonging to the field of organic synthesis. The invention relates to a method for synthesizing chiral first chrysanthemic acid by asymmetric cyclopropanation reaction of 2, 5-dimethyl-2, 4-hexadiene and ethyl diazoacetate, and hydrolyzing the chiral first chrysanthemic acid. The chiral copper catalyst is prepared with copper salt and chiral tridentate P, N, N-ligand in situ in various polar and non-polar solvents. The invention can conveniently synthesize the chiral trans-first chrysanthemic acid, and the enantiomeric excess percentage of the chiral trans-first chrysanthemic acid is as high as 95%. The method has the characteristics of simple operation, easily obtained raw materials, wide application range of the substrate, high enantioselectivity and the like. |
| priorityDate | 2018-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 67.