http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106243073-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-04 |
| filingDate | 2016-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106243073-B |
| titleOfInvention | A kind of 2-H 1-benzopyran derivatives and its synthetic method |
| abstract | The invention belongs to technical field of organic synthesis, disclose 2 H 1-benzopyran derivatives of one kind and its synthetic method.2 H 1-benzopyran derivatives of the present invention have structural formula shown in formula (1), and preparation method is：In the reactor, alkynes ether, olefin(e) acid ester and solvent is added, palladium salt catalyst and oxidant is added, it is stirred to react at 20~150 DEG C 3~48 hours, it is cooled to room temperature after reaction, removes solvent under reduced pressure and obtain crude product, purify to obtain the 2 H 1-benzopyran derivatives through column chromatography.The synthetic method safe operation of the present invention is simple, and raw material is easy to get, is cheap, good to functional group adaptability, environmental-friendly to substrate wide adaptability, is conducive to industrial production, is widely used in the synthesis of pesticide, medicine and natural products. |
| priorityDate | 2016-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 91.