Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_acf454bb3d0f772e2bd9c6bd9c9bfdc3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_39037885f4aaf02782f5f367b4570860 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6eb84fc56eaaaf80cbb7187c135c0b8c http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bc8aefc289a8d59f22ef88e19b3c1a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_969906d0f89904b73db7d577042bc0be |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5442 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5449 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-54 |
filingDate |
2006-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_49fdd5c959f1578bd43175364d42988b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88b8c9807b728018e54097298cbac400 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_300d8a32caa938177de4c3bf547e8de7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c130ca8d58c508561602ffbbb9e1c62 |
publicationDate |
2007-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
WO-2007035540-A2 |
titleOfInvention |
Process for the monosulfonation of aromatic phosphines, and zwitterionic product derived therefrom |
abstract |
A method of preparing an aromatic phosphine monosulfonate in zwitterionic form, such as dicyclohexylphenylphosphine monosulfonate zwitterion, involving contacting an aromatic phosphine with a sulfonating agent to provide a reaction mixture containing aromatic phosphine monosulfonate in acid form and unconverted sulfonating agent; quenching or removing substantially all of the unconverted sulfonating agent; partially neutralizing the aromatic phosphine monosulfonate in acid form to phase separate aromatic phosphine monosulfonate in zwitterionic form as a solid or neat liquid layer; and collecting the zwitterion as a solid or neat liquid. The zwitterion may be neutralized to form the corresponding aromatic phosphine monosulfonate metal salt, which is useful in preparing catalysts for hydroformylation processes. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8394978-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8461366-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8466306-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8134031-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7754924-B2 |
priorityDate |
2005-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |