http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002072612-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D498-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D498-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 2001-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eecc0e3908a6ee2f555259b0deb5f127 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93a5847acab9e0c218898db905041d34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bbc1de15200a979fb9dd00638153fd50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_63ace91758b4ae2f6c21d284c241cc33 |
| publicationDate | 2002-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2002072612-A1 |
| titleOfInvention | 7a-alkoxy-4H-pyrano [3,2-d] -oxazol-2 (3H) -one and process for producing the same |
| abstract | The present invention provides a novel 7a-alkoxy-4H-pyrano-[3,2-d]-oxazol-2(3H)-one represented by the formula (I): n n n wherein R 1 and R 2 each represent a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or an aralkyl group; R 3 represents an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group or an aralkyl group, provided that a 2-alkenyl group is excluded from the alkenyl group of R 3 ; and R 4 represents an alkyl group, an aryl group, an alkoxycarbonyl group or a cyano group, n and a process for producing the same which comprises reacting 5-alkoxy-2(3H)-oxazolone with an α,β-unsaturated ketone in the presence of a Lewis acid in a solvent. |
| priorityDate | 2000-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 795.