| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0e77f06144be4708a6ae75bd9fee56a4 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D201-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D315-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-85
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D201-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-83
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D315-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-267
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-035 |
| filingDate |
1993-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8481b6dcf111c6e970c9c77f187af75f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c4b98db40942cd163595748182d4d55c |
| publicationDate |
1993-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9316042-A1 |
| titleOfInvention |
Process for producing pyrrolidone and n-alkyl pyrrolidones |
| abstract |
The invention relates to a process for producing pyrrolidone and N-alkyl pyrrolidones from saturated or unsaturated 1.4-bicarboxylic acids and their anhydrides, hydrogen and a primary amine or ammonia, in which the bicarboxylic acid or its anhydride is caused to react with hydrogen or ammonia in a suitable reactor above a first catalyst bed and then the unisolated intermediate product is caused to react with the primary amine or ammonia directly above a second downstream catalyst bed. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015158794-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9796860-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-02102773-A1 |
| priorityDate |
1992-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |