http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104292189-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_226fa86f9790e799a44846e2f6319e98 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-1804 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-1892 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D309-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D309-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-16 |
| filingDate | 2014-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_397f4fa8f7475e5ac28327174bcd478a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1e9a8c01ff0d4ada89ed43afbc71831 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4111fb73d910a6bd216fe170bb7158f |
| publicationDate | 2015-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104292189-A |
| titleOfInvention | A kind of synthetic method of β-diethyl malonate substituted tetrahydrofuran compound |
| abstract | The invention discloses a synthesis method of β-diethyl malonate substituted tetrahydrofuran compounds, which relates to a synthesis method of substituted tetrahydrofuran compounds. The object of the present invention is to solve the problems of environmental pollution and low yield in the prior synthesis of tetrahydrofuran compounds substituted by diethyl β-malonate. Method: Add enol compounds, oxidizing reagents, photoreaction catalysts, dipotassium hydrogen phosphate and dry organic solvents into the reactor, and react at room temperature for 3 to 8 hours under visible light irradiation. After the reaction is complete, add distilled water to the reaction system , the mixture was obtained, and then extracted with ethyl acetate as an extractant to obtain an organic phase, which was dried over anhydrous sodium sulfate and concentrated, and then purified by silica gel column chromatography with an eluent to obtain β-malonic acid di Ethyl esters replace tetrahydrofuran compounds. The production rate of the invention is high, and the reaction yield can be as high as more than 80%. The invention is suitable for synthesizing tetrahydrofuran compounds substituted by diethyl beta-malonate. |
| priorityDate | 2014-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.