Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-58 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-58 |
filingDate |
1992-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68632211f7c4ca587774c666a2228ded http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a38243735b9696fe10030cd1ba24503 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99ca03a046bf2788395524801d79fca1 |
publicationDate |
1992-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
EP-0499328-A2 |
titleOfInvention |
Process for the preparation of diarylphosphino pyridines |
abstract |
The invention relates to a process for the preparation of a diarylphosphino pyridine comprising the steps of:n a) reacting a triaryl phosphine with about two equivalents of an alkali metal in a substantially aprotic solvent medium to form an alkali diarylphosphide and an alkali aryl; b) selectively eliminating the alkali aryl formed; c) reacting the alkali diarylphosphide with about one equivalent per halide group of an optionally substituted pyridyl halide; and d) separating the diarylphosphino pyridine formed. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9843986-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9901461-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6215026-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6756411-B2 |
priorityDate |
1991-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |