| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d24321bed2edef57b40e064ce34f0a6e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B2200-07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-52 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-255
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-66 |
| filingDate |
2003-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2008-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5df6aa733267783043b6019bdb8bc066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4880ca7b1c88cb6f16e84bf7d0fa044
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_897ffb12df84893f2b6901b0e1663daa |
| publicationDate |
2008-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7358384-B2 |
| titleOfInvention |
Processes for the recovery of optically active diacyltartaric acids |
| abstract |
When a salt of an amine and an optically active diacyltartaric acid, or a diastereomer salt of an optically active amine and an optically active diacyltartaric acid, obtained by optically resolving a racemic amine using the optically active diacyltartaric acid, is salt-exchanged with an acid aqueous solution, the optically active diacyltartaric acid is added in the acid aqueous solution beforehand. n Furthermore, a raw material containing a racemic amine and an optically active diacyltartaric acid is optically resolved, and the diastereomer salt of the optically active amine and the optically active diacyltartaric acid respectively of one isomer type, is separated. The obtained diastereomer salt is dissociated using an acid aqueous solution containing the optically active diacyltartaric acid, for recovering the optically active diacyltartaric acid, and the obtained optically active diacyltartaric acid is recycled into an optical resolution step as a raw material of the optical resolution step. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10774033-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2016297784-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10252981-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11780801-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017019487-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11192847-B2 |
| priorityDate |
2003-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |