http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1263713-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-824 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-1895 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-28 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2438 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-30 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D223-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D201-08 |
| filingDate | 2001-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7716530d9900fa14035b12aeec723c69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dae7bb70305575aa8d7c2a52d6d59620 |
| publicationDate | 2004-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1263713-B1 |
| titleOfInvention | Process for the carbonylation of pentenenitrile |
| abstract | Processes to prepare 5-cyanovaleric acid or its ester are provided, by carbonylation of a pentenenitrile, wherein pentenenitrile is reacted with carbon monoxide and water and/or an alcohol in the presence of a catalyst system. The catalyst system contains: (a) a metal of Group VIII or a compound thereof and (b) a bidentate phosphine, arsine and/or stibine ligand, wherein the bidentate ligand has the general formula (I): <?in-line-formulae description="In-line Formulae" end="lead"?>R<SUP>1</SUP>R<SUP>2</SUP>-M<SUP>1</SUP>-R-M<SUP>2</SUP>-R<SUP>3</SUP>R<SUP>4</SUP> (I)<?in-line-formulae description="In-line Formulae" end="tail"?> wherein M<SUP>1 </SUP>and M<SUP>2 </SUP>are independently P, As or Sb, R is a divalent organic bridging group, which bridging group comprises a chain of 3 to 5 atoms directly connecting the 2 phosphorus atoms, which chain consists of carbon atoms and optionally a nitrogen, oxygen or sulphur atom or a silano or dialkylsilicon group, which alkyl groups independently comprise from 1 to 4 carbon atoms, and R<SUP>1</SUP>-R<SUP>4 </SUP>represent the same or different optionally substituted tertiary alkyl groups, (c) an acid having a pKa less than 3, as measured at 18° C. in an aqueous solution. epsilon-caprolactam is also prepared by reduction of 5-cyanovaleric acid or ester obtained above to 6-aminocaproic acid or ester, and then cyclisation of the 6-aminocaproic acid or ester to epsilon-caprolactam. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7026473-B2 |
| priorityDate | 2000-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 151.