http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112574247-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-0827 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-08 |
| filingDate | 2020-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2023-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2023-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112574247-B |
| titleOfInvention | A kind of synthetic method starting from 2,2'-dichloroethyl ether to synthesize 4-ethynyl-tetrahydropyran |
| abstract | The present invention proposes a kind of synthetic method starting from 2,2'-dichloroethyl ether to synthesize 4-ethynyl-tetrahydropyran, comprising the following steps: (a) the compound shown in formula (I) is mixed with potassium carbonate and potassium iodide Under the action, react with ethyl acetoacetate, after post-treatment, obtain the compound shown in formula (II) through sulfuric acid decarboxylation; The compound represented by the formula (III) is obtained by reacting the ester reagent; (c) the compound represented by the formula (III) is eliminated by an alkaline reagent, and then reacted with an alkylchlorosilane to obtain the compound represented by the formula (IV). The preparation method of the present invention is different in terms of starting raw materials, process routes and post-treatment processes. The raw materials of the present invention are simple and easy to obtain and low in cost, and are suitable for both small-scale preparation in laboratories and industrial production. |
| priorityDate | 2020-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 64.