http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6683218-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7f9af914ed2fb00cd4f1b8b1a28964e4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F5-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F5-02 |
| filingDate | 1997-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1634dfd9b57d187a4923bbf59d349956 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44b73ae47fdbb5bb6a9fdcfe1b630663 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_24a12996c7a0faffbc0be99b7f77905b |
| publicationDate | 2004-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6683218-B1 |
| titleOfInvention | Process for preparing a tetrakis(fluoroaryl) borate derivative |
| abstract | A fluoroaryl magnesium derivative expressed by General Formula (1):where each of R1-R5 represents a hydrogen atom, a fluorine atom, a hydrocarbon group, or an alkoxy group while at least one of R1-R5 representing a fluorine atom, and Xa represents a chlorine atom, a bromine atom, or an iodine atom; andboron halide expressed by General Formula (2):where Xb represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom, are reacted with each other in a solvent (a) containing diethyl ether and/or tetrahydrofuran, after which the resulting reaction solution is added to a solvent (b) having a higher boiling point than diethyl ether and/or tetrahydrofuran while diethyl ether and/or tetrahydrofuran are distilled out. Consequently, it has become possible to obtain a (fluoroaryl)borane compound expressed by General Formula (3):where each of R1-R5, and Xb, represents the same as above, and n represents 2 or 3, from which magnesium halide produced as a by-product is separated and removed, selectively in a simple manner at a low cost. |
| priorityDate | 1996-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 556.