http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2371223-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cf117803acdf63b3aaa681b82e6cc9d2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F17-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F17-00 |
| filingDate | 2008-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2011-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33ffa43dac1c32ec4d9a5f338855ef87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_243ac107e718d4022b9ff246208eb342 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf2ac7d1c0114ded5a51ff1fd847b3ce |
| publicationDate | 2011-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2371223-T3 |
| titleOfInvention | PROCEDURE FOR PREPARING METALOCENES OF DIALQUIL OXIDE OR METALOCENES OF DIARILOXIDE OXIDE. |
| abstract | Procedure for preparing dialloxide metallocenes, diaryl oxide metallocenes and, preferably, diphenoxide, diastereomerically pure, stereorigid, bridge-linked metallocenes of the general formula Q (Cp) (Cp ') M (OR 3) 2 in which Cp = a cyclopentadienyl, indenyl or fluorenyl radical Cp '= one of the groups Cp Q = a bridge type link (R 1 -ZR 2) b, single or multi-member, between Cp and Cp', in which R 1 and R2 may be the same or different, and each is a hydrogen atom, a C1-C10 alkyl group, a C6-C10 aryl group and Z is carbon, silicon or germanium, where b = 1, 2 or 3 M = a transition metal of group 4, especially Zr, Hf and Ti O = oxygen R 3 = a C1-C10 alkyl group, a C6-C10 aryl group, where the alkyl group may be branched or unbranched and may be substituted by aryl groups, and the aryl group may contain additional substituents, characterized in that, in the first stage, a metallocene dihalide and stereorigid, bridge bound, in the form of a diastereomeric rac / meso mixture, said metallocene dihalide having the general formula Q (Cp) (Cp ') M (X) 2 in which Cp = a cyclopentadienyl radical, indenyl, fluorenyl Cp '= one of the groups Cp, which may be the same or different Q = a bridge type link (R 1 -ZR 2) b, single or multi-member, between Cp and Cp', in which R 1 and R 2 may be the same or different, and each is a hydrogen atom, a C1-C10 alkyl group, a C6-C10 aryl group and Z is carbon, silicon or germanium, where b = 1, 2 or 3 M = a metal transition group 4, especially Zr and Hf X = a halogen, especially Cl is reacted with an alkylating reagent of the general formula in which R 4 -M- (X) n R 4 = a C1-C10 alkyl group, a C6-C10 aryl group M = an alkali metal or alkaline earth metal, preferably Mg, Na or Li X = halogen, especially Cl and Br n = the oxidation number of M reduced by 1, and then the The resulting reaction mixture, or the intermediate isolated dialkylmethalocene, is reacted with an alcohol, an aryl alcohol or a phenol of the general formula HO-R 3 'in which HO = a hydroxyl group R 3 = a C1-alkyl group -C10, a C6-C10 aryl group, where the alkyl group may be branched or unbranched, and may be substituted with aryl groups, and the aryl group may contain additional substituents. |
| priorityDate | 2007-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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