http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003034687-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_046e16bd6918ef3cd62184605b15a413 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B2200-07 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-33 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B53-00 |
| filingDate | 2001-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2489353f29b5557df972a7cd8c057c38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9936b77ced6420ae5b17f6634a21448b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d2988eefe998cf162a3e4deba589edb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_863869ac6c1e79cd9a8741589a3e7dfd |
| publicationDate | 2003-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2003034687-A |
| titleOfInvention | Method for producing optically active γ-butyrolactone |
| abstract | PROBLEM TO BE SOLVED: To provide an optically active 3-hydroxy-γ- industrially excellent in economical efficiency and short process by using easily available and inexpensive raw materials and easily handleable reagents. A novel method for producing butyrolactone is provided. SOLUTION: The present invention relates to a compound represented by the following general formula (2): (Wherein R 1 is a lower alkyl group having 1 to 4 carbon atoms; 2 is a hydroxyl-protecting group which is deprotected by hydrogenation with a heterogeneous hydrogenation catalyst, and * means an asymmetric carbon atom. (1) hydrogenating an optically active 4-substituted oxy-3-hydroxybutyric acid ester represented by the formula (1) in the presence of a heterogeneous hydrogenation catalyst and an acidic substance, followed by deprotection and ring closure. Formula (1) Formula (1) (In the formula, * has the same meaning as described above.) A method for producing an optically active 3-hydroxy-γ-butyrolactone represented by the formula: |
| priorityDate | 2001-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 171.