http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008114191-A1
Outgoing Links
Predicate | Object |
---|---|
assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b9ff2988b0c12145a439b1a8945d0e6d |
classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5022 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-38 |
filingDate | 2008-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d8d76a6b200acb77e99b96b3e8d3a08d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84e70c5a4b2220ee88b391a2a0c16a71 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5768c11d9f84eb0978b00f412697f568 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a5212edf179eeb071a5ebb80569c314d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_64058a9b9a77910d96bbfc65bef80524 |
publicationDate | 2008-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | US-2008114191-A1 |
titleOfInvention | Minimization of ligand degradation products, or reversion of same to useful phosphine ligands |
abstract | A process for the minimization of phosphonium ion ligand degradation products formed during reaction of a polyunsaturated olefin or an unconjugated functionalized olefin in the presence of a transition metal-triorganophosphine ligand complex catalyst to form as a product, by-product, or intermediate product a conjugated functionalized olefin having a carbon-carbon double bond conjugated to an α-electron-withdrawing group, such as, an α,β-unsaturated aldehyde, ketone, ester, acid, or nitrile. The minimization process involves conducting the reaction under selected conditions of conversion, temperature, pressure, or a combination thereof; and/or by selecting a triorganophosphine ligand with a specified steric and/or electronic property. Further, a process for reversion of phosphonium ion ligand degradation product(s) back to useful triorganophosphine ligand(s), the reversion involving treating a reaction product fluid containing the degradation product(s) with an inert gas, hydrogen, synthesis gas, or a mixture thereof under conditions sufficient to regenerate the triorganophosphine ligand(s). |
priorityDate | 2003-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 334.