http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1286981-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7c3abccac7bae9414dc8ce09b2d192dc |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-77 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-83 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-77 |
| filingDate | 2001-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eeb744129e19c0deb635ce5b2ed5c5ec http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7d15831115c3cbbcc494b786b9006e20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a34c95a32d23199704400e065ae9c12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6728460b09d270cc80d8b30134a910e9 |
| publicationDate | 2003-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1286981-A1 |
| titleOfInvention | Method for the production of 2- coumarone and substituted 2-coumarones |
| abstract | The invention relates to a method for the production of 2-coumarone or substituted 2-coumarones, whereby cyclohexanone or substituted cyclohexanone is reacted with a carboxyl-containing acylating agent a) to give methyl 2-(2-oxo-cyclohexyl)-2-hydroxyacetate or substituted methyl 2-(2-oxo-cyclohexyl)-2-hydroxyacetates, which are either a1) directly converted to 2-coumarone or substituted 2-coumarones by means of catalytic gas-phase dehydrogenation, or a2) dehydrated by means of azeotropic distillation under basic conditions, or by use of a strong acid, or a strongly acidic ion exchanger to a mixture of methyl 2-oxocyclohexylidenacetate and the enol-lactone of the 2-oxocyclohexylidenacetic acid, or a mixture of substituted methyl 2-oxocyclohexylidenacetate and the enol-lactone of the substituted 2-oxocyclohexylidenacetic acid, which is finally converted in turn by catalytic gas-phase dehydrogenation to 2-coumarone, or substituted 2-coumarones, or b) are directly converted under acidic or basic conditions into a mixture of methyl 2-oxocyclohexylidenacetate and the enol-lactone of 2-oxo-cyclohexylidenacetic acid, or a mixture of substituted methyl 2-oxocyclohexylidenacetate and the enol-lactone of the substituted 2-oxo-cyclohexylidenacetic acid, which is finally converted in turn by catalytic gas-phase dehydrogenation into 2-coumarone or substituted 2-coumarones. |
| priorityDate | 2000-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 67.