http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S63174947-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2baf849d216e689ecc40ccc931a7a7bc |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-083 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 1987-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ef51268f76dffa53cef848bc680c001a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1694ca772d44fe5a57b1501050927d1 |
| publicationDate | 1988-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S63174947-A |
| titleOfInvention | Production of gamma-hydroxybutyric acid |
| abstract | PURPOSE: To readily obtain the titled compound useful as an intermediate raw materials for drugs and agricultural chemicals in high yield without using expensive raw materials, by hydrogenating maleic anhydride and/or succinic anhydride as a raw material in the presence of a palladium catalyst. n CONSTITUTION: Maleic anhydride and/or succinic anhydride is used as a starting raw material and hydrogenated in the presence of a palladium catalyst in a solvent such as preferably methyl acetate, tetrahydrofuran, etc., at 25W100°C, preferably 50W95°C to give the aimed compound. A catalyst obtained by supporting metal palladium on active carbon, alumina, etc., is preferable as the catalyst. The amount of the catalyst used is 0.01W1wt.%, especially ≥0.5wt.% based on the starting raw material. The hydrogenating reaction can be dividedly carried out at two stages and when maleic anhydride is used as a raw material, maleic anhydride is hydrogenated at the first stage and formed succinic anhydride is further hydrogenated. n COPYRIGHT: (C)1988,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101030759-B1 |
| priorityDate | 1987-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.