http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112517060-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-4205 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0285 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0282 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0284 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-56 |
| filingDate | 2020-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112517060-B |
| titleOfInvention | Catalyst, application and synthesis method of 4-hydroxycoumarin derivative |
| abstract | The invention relates to a synthetic method of a 4-hydroxycoumarin derivative. The invention provides a synthesis method of 4-hydroxycoumarin derivatives, which takes acid functionalized ionic liquid as a catalyst to catalyze reactants to carry out alkylation reaction, thereby synthesizing a series of 4-hydroxycoumarin derivatives; the reactant comprises a 4-hydroxycoumarin compound as a first reactant and any one of diphenyl alcohols, allyl alcohols, propargyl alcohols and benzyl alcohols as a second reactant. The catalyst in the invention adopts acid functionalized ionic liquid, thus avoiding the defects of high reaction temperature, long reaction time, harsh reaction conditions, complex and difficult subsequent treatment and the like in the prior art; the adopted catalyst has high catalytic activity, small using amount and low catalyst corrosivity; the reaction conditions are milder and more environment-friendly, and the application range of the substrate is wide; the product selectivity is good in the reaction process, the controllability is strong, the yield of the product is high and can reach 99% at most. |
| priorityDate | 2020-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 100.