| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B2200-07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-0272 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B53-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-0006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0239 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B53-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-00 |
| filingDate |
2019-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-110665541-B |
| titleOfInvention |
β-cyclodextrin composition and preparation method thereof |
| abstract |
A β-cyclodextrin composition for catalyzing asymmetric synthesis of mandelic acid and a preparation method thereof are disclosed, and the structural formula of the derivative is shown in formula 2. The composition further comprises a quaternary ammonium salt. When the β-cyclodextrin derivative and the quaternary ammonium salt are used in a certain proportion, they are used to catalyze the asymmetric synthesis reaction of mandelic acid, the reaction conditions are mild, the stereoselectivity is strong, and the mandelic acid mainly obtained by (R)-mandelic acid is mainly obtained. , and the yield is high. |
| priorityDate |
2019-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |