| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e938e28337fbaa9944d781f3ccf86b5e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-27 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-26 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-263 |
| filingDate |
1978-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a0fec251392a87d5c4a08431ead5231 |
| publicationDate |
1979-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4151171-A |
| titleOfInvention |
Process for the production of 2-pyrrolidone |
| abstract |
A process for producing N-acyl-2-pyrrolidone which comprises a contacting N-acyl allylamine with carbon monoxide in the presence of an aliphatic carboxylic acid solvent and a homogeneous catalyst of palladium or platinum coordinated with triphenylphosphine. According to a preferred embodiment, the acyl group is removed from the N-acyl-2-pyrrolidone by contacting and heating the N-acyl-2-pyrrolidone with allylamine to thereby effect transacylation and obtain product 2-pyrrolidone and N-acyl-allylamine as a recycle feed stream. Alternatively, N-acyl-2-pyrrolidone can be hydrolyzed to 2-pyrrolidone and the carboxylic acid derived from the acyl group. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007173643-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7199250-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5932723-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7674916-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010145072-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003114687-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004176589-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6603021-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8501963-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7973177-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6706893-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6670483-B2 |
| priorityDate |
1976-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |