http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009105505-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b09f893b262cefd50c5e76c4b85d1c0a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5027 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5068 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-50 |
| filingDate | 2005-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_34c29fa2fe178ba260e3dcd6fdf712a5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a91273f45edae527f0b1fee6eaae6a98 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f79b20821cda6247e50edef2edd19266 |
| publicationDate | 2009-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2009105505-A1 |
| titleOfInvention | Process for the preparation of asymmetrically substituted biaryldiphosphines |
| abstract | A process for the preparation of asymmetrically substituted biaryldiphosphine ligands of the formula: n n n n n n n n n n wherein R 1 is C 1-6 -alkyl or C 3-10 -cycloalkyl optionally being substituted with one or more halogen atoms, andn nR 2 and R 3 are equal and are C 5-10 -cycloalkyl and C 1-6 -alkyl,n nor R 2 is C 5-10 -cycloalkyl or C 1-6 -alkyl, and R 3 is aryl optionally substituted with one or more substituents selected from the group consisting of halogen atoms, nitro, amino, C 1-6 -alkyl, C 1-6 -akoxy and di-C 1-6 -alkylamino groups, 2 n nand each C 1-6 -alkyl, C 1-6 -alkoxy, di-C 1-6 -alkylamino and C 5-10 -cycloalkyl group in R 2 and R 3 is optionally substituted with one or more halogen atoms, from 2,2′,6,6′-tetrabromobiphenyl by a sequence of bromine-metal exchanges and subsequent reactions. |
| priorityDate | 2004-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 305.