http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0177072-A3
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P13-222 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P13-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P41-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P13-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P13-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P41-00 |
| filingDate | 1985-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1987-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0177072-A3 |
| titleOfInvention | Preparation of amino acids from unsaturated hydantoins |
| abstract | Amino acids can be easily prepared by reducing unsatunrated hydantoins to the corresponding saturated hydantoins nby hydrogenating the unsaturated hydantoin using either nRaney Nickel catalyst in the presence of more than a nstoichiometric amount of caustic or by using zinc and nhydrochloric acid followed by hydrolyzing the resultant ncomposition with at least 3 molar equivalents of an alkali nmetal hydroxide to produce a racemate of an alpha amino nacid. The amino acid in suitable derivative form can then be nresolved particularly using a two-phase solvent system. The nresidual isomer of the amino acid remaining after the nresolution process can then be racemized using either npyridoxal-5-phosphate or an aliphatic acid in combination nwith an aldehyde or a ketone. By these procedures, it is npossible to obtain high yields of amino acids. |
| priorityDate | 1984-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.