| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_634538388f2dd27ea0a8bc2a2032c517 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D223-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B57-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B55-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B31-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D223-12 |
| filingDate |
1974-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1976-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d658dc7d4a38cb06c66c8895df8631a6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d18b74e9f92db922592cf9aba54cb381
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e8805dd7ee1177ad1a1a99d7ecb1d17c |
| publicationDate |
1976-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3941776-A |
| titleOfInvention |
Resolution/racemization of aminolactam compounds |
| abstract |
Resolution of alpha -amino- epsilon -caprolactam with simultaneous racemization of the undesired alpha -aminocaprolactam enantiomer is effected by preferentially crystallizing the L- (or D-) alpha -amino-caprolactam compound in the presence of a racemization catalyst. In a narrower embodiment racemization of alpha -amino- epsilon -caprolactam is effected by alternate routes of forming a coordinately saturated aminolactam-metal complex and reacting with a strong base or reacting a mixture of an aminolactam salt and aminolactam free base with a chelating carbonyl compound and a metal ion or reacting a mixture of an aminolactam salt and aminolactam free base in the presence of a salen derivative complex. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6036865-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4259239-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4680392-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103880746-A |
| priorityDate |
1974-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |