| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_05a203d85ee01909eaf728dc16f0f6cb |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D309-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D309-40 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D309-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D309-32 |
| filingDate |
1978-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c85acbb2885152d0a24df4f43dc569c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d54d1b9b8abc2622bf3773535945c2c9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7dc6eac9a006abf7146b8e7bb5334e2d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7b6f082d376e23580abed463c3416bb |
| publicationDate |
1979-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4147705-A |
| titleOfInvention |
Preparation of gamma-pyrones |
| abstract |
2-Methyl-3-hydroxy-4H-pyran-4-one is prepared by contacting 1(2-furyl)-1-ethanol in aqueous solution with two equivalents of a halogen oxidant at room temperature and then heating until the hydrolysis of the formed 4-halo-dihydropyran intermediate is substantially complete. Other valuable related gamma-pyrones are prepared in analogous manner from appropriate alcohols. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112778257-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5939565-A |
| priorityDate |
1976-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |