| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-301
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D233-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C319-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C237-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-30 |
| filingDate |
2017-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2020-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2020-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-108003077-B |
| titleOfInvention |
Preparation and purification method of amino acid compound |
| abstract |
The invention relates to the field of industrial organic synthesis, in particular to a preparation and purification method of an amino acid compound, which comprises the following steps of (1) heating α -amino nitrile compound or hydantoin compound or a mixture thereof to react in the presence of volatile alkali and a proper solvent to obtain α -amino acid salt, and (2) distilling α -amino acid salt obtained in the step (1) and recrystallizing in an organic solvent to obtain α -amino acid compound. |
| priorityDate |
2017-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |