http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7820849-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_adb0e564374fedf34b36103d36e6455a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-00 |
| filingDate | 2004-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2010-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d0f6137fbfcb204764f84bf1bf08390 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f04d5fffa26b7f7a6c63ac9933096d43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed924748864b18a7d8b0da0d6a726ed0 |
| publicationDate | 2010-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-7820849-B2 |
| titleOfInvention | Process for the carbonylation of conjugated dienes using a palladium catalyst system |
| abstract | A process is provided, in particular a continuous process for the carbonylation of butadiene by reacting the butadiene with carbon monoxide and a hydroxyl group-containing compound in the presence of a palladium catalyst system in a reaction zone to form a reaction mixture, said catalyst system comprising (a) a source of palladium cations, (b) a mono-, bi- or multidentate phosphine ligand, containing at least one phosphorus atom which is directly bound to two or three aliphatic carbon atoms, as process ligand to produce a palladium-phosphine ligand complex catalyst, and (c) a source of anions, said process ligand (b) containing the moiety shown in formula (I), n nwherein A 1 and A 2 each represent an aliphatic carbon atom which can be connected to one or more aliphatic or aromatic carbon atoms or both A 1 and A 2 are part of an at least 5-membered ring including the phosphorus atom, and X represents an aliphatic or aromatic carbon atom which can be connected to one or more aliphatic or aromatic carbon atoms or X is part of an organic bridging group connecting another identically or differently substituted phosphorus atom, and said source of anions (c) containing a carboxylic acid and, optionally, halide ions, wherein said process ligand is fed continuously or periodically to the process as ligand make-up at a temperature 50° C. or lower. |
| priorityDate | 2003-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 328.