http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003246762-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-707 |
| filingDate | 2002-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acc8cc5d9a239fbe6cb5bb803e3f9edd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e031417b098d58fed6ad2206f0528fa |
| publicationDate | 2003-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2003246762-A |
| titleOfInvention | Purification method of cyclopentenolones |
| abstract | (57) [Summary] (Modifications) [Problem] To easily and efficiently purify thermally unstable cyclopentenolones, and in terms of operability and economical efficiency even when implemented on an industrial scale. A method for advantageously purifying is provided. SOLUTION: A cyclopentenolone (1) represented by the general formula (1) is reacted with calcium chloride in the coexistence of an ester solvent, and the resulting cyclopentenolone (1) / calcium chloride adduct is separated and obtained. A method for purifying cyclopentenolones, which comprises decomposing the resultant to recover the cyclopentenolones (1). (In the formula, R 1 represents an alkyl group, an alkenyl group, an alkynyl group or an aralkyl group, and R 2 represents a hydrogen atom or an alkyl group.) |
| priorityDate | 2002-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 89.