| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_966a6c1f382ec9bcb5e3839dfd73e5b8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B37-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5329
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65517
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-655354
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5325
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-4025 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-53
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-655
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6553
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B57-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B37-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-40 |
| filingDate |
1998-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b1b7411c137af50f57c235b3a0a5dc4b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f1fad9ddb1dfc80418a4b9235e5574d |
| publicationDate |
1999-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2256828-A1 |
| titleOfInvention |
Process for the manufacture of bis(phosphine oxide)-and bis(phosphonate)- compounds |
| abstract |
A process for the manufacture of bisphosphine oxide compounds and bisphospho- nates as intermediates for the production of bisphosphine ligands, in which in a single step process a) a phosphine oxide compound is reacted in an organic solvent at -70°C to 20°C with 0.5-3 eq. of a lithium or magnesium amide compound, b) 0.5-3 eq. of oxidatively-acting metal salt or metal salt complex are added to the suspension obtained in stage a) in a temperature range of -70°C to 20°C, with a racemate of a bisphosphine oxide compound being obtained; c) a racemate cleavage is carried out if desired; and d) the bisphosphonates obtained in stage b) or c) are converted into bisphosphine oxides. |
| priorityDate |
1997-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |