http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3896053-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b4711b7defc1422cdb7f86d2c95657bf |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B2200-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2602-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B53-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-12 |
| filingDate | 2019-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c4c86b540457ee568097c44b90f9e5b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7483ff0321b871681eaf014933fe473c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e5709198ae56cd2c810c0deed5e6f0e4 |
| publicationDate | 2021-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3896053-A1 |
| titleOfInvention | Method for directly constructing tetra-substituted allenic acid compound having high optical activity |
| abstract | The present invention discloses a method for directly constructing highly optically active tetrasubstituted allenic acid compounds, i.e., a one-step process for directly constructing highly optically active axially chiral tetrasubstituted allenic acid compounds by using tertiary propargyl alcohol, carbon monoxide and water as reactants in an organic solvent in the presence of palladium catalyst, chiral diphosphine ligand, monophosphine ligand and organic phosphoric acid. The method of the present invention has the following advantages: operations are simple, raw materials and reagents are readily available, the reaction conditions are mild, the substrate has high universality, the functional group has good compatibility, and the reaction has high enantioselectivity (90%∼> 99% ee). The highly optically active allenic acid compounds obtained by the present invention can be used as an important intermediate to construct γ-butyrolactone compounds containing tetrasubstituted chiral quaternary carbon centers, tetrasubstituted allenic alcohol and other compounds. |
| priorityDate | 2018-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 265.