http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003277382-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/C07D493-04 |
| filingDate | 2002-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61d74ada5a908732febd1108199e5d84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e289999788e71dbe6ab9871eb2f1972a |
| publicationDate | 2003-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2003277382-A |
| titleOfInvention | Method for producing 2,3-dihydro-7-methyl-2- (1-methylethyl) -4H, 5H-pyrano [4,3-b] pyran-4,5-dione |
| abstract | PROBLEM TO BE SOLVED: To produce 2,3-dihydro-7-methyl-2- (1-methylethyl) -4H, 5H-pyrano [4,3-b] pyran-4,5-dione To provide. A first step of reacting 3-acetyl-4-hydroxy-6-methyl-2-pyrone with isobutyraldehyde at 30 to 60 ° C. in the presence of a secondary amine, A second step of adding an alkylbenzene and an acid to the reaction mixture in the step to precipitate crystals and obtaining the crystals, and comprising the step of: 2,3-dihydro-7-methyl-2- (1-methylethyl) -4H, 5H-pyrano [4,3- b] Method for producing pyran-4,5-dione. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102276617-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013124249-A |
| priorityDate | 2002-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.