http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104080792-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_18a8284bc1d41fe092e46c249d6220be |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65912 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2602-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2420-09 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-321 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F17-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 |
| filingDate | 2012-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a872d245e598852a905000977101cb64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1bb2722740aeedabd380411cb0abc7f7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e75ab030032f56bb14b17b2cf3d3089e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16615769db59111688cb8ff0b9df92f9 |
| publicationDate | 2014-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104080792-A |
| titleOfInvention | Method for preparing metallocene complexes |
| abstract | The present invention relates to a process comprising the step of reacting a 2-indenyl pinacoylborane compound with a bromine substituted compound in the presence of a Pd catalyst and a base to form the corresponding bridged bis(indenyl) ligand. This method step is very efficient and produces fewer (self-coupling) by-products than other known methods. The method of the present invention may further comprise the step of reacting a 2-bromoindene compound with a pinacolborane in the presence of a Pd catalyst and a base to form the corresponding 2-indenylpinacolborane compound. In this context, the present invention provides an improved and facile two-step process for the preparation of bridged bis(indenyl) ligands. These bridged bis(indenyl) ligands may be suitable for the preparation of metallocene complexes such as 2,2'-bis(2-indenyl)biphenyl ZrCl and 1,2-bis(2-indenyl) Benzene ZrCl 2 . These metallocene complexes can be used to polymerize one or more alpha-olefins, preferably ethylene, optionally in the presence of a cocatalyst. In a preferred embodiment, the Pd catalyst is preferably (triphenylphosphine)palladium dichloride (PPh 3 ) 2 PdCl 2 ). |
| priorityDate | 2011-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.