http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6414206-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b8be6a6c990669567cc455d32b00535e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2602-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-325 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C13-465 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-32 |
| filingDate | 2001-02-22^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2002-07-02^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fbb378c1e62602074d2bb05353b1649d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba2577c7cd89e53e4c19d53fa67dc954 |
| publicationDate | 2002-07-02^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6414206-B2 |
| titleOfInvention | Process for preparing bisindenylalkanes |
| abstract | The present invention relates to a process for preparing bisindenylalkanes of formula I:wherein R1, R2, R3, and R4 independently represent H or a C1-C6 hydrocarbon group or R1 and R2 or R1 and R3 or R3 and R4 together with the carbon atoms to which they are attached form a saturated or unsaturated 5- or 6-membered ring, said ring being optionally substituted with a C1-C4 hydrocarbon group, and R5 represents a C1-C6 hydrocarbon group, comprising reacting, at a temperature which does not exceed about 5° C., a metallated indene of formula II with a disubstituted hydrocarbon of formula III:wherein R1, R2, R3, R4, and R5 have the same meaning as defined above, M represents a metal ion, and X independently represents a suitable leaving group, in a suitable reaction medium wherein the molar ratio of II to III is 2.05 or higher. The process is particularly suitable for preparing bisindenylethane, i.e., R1-R4 represent H and R5 represents an ethylene group. |
| priorityDate | 2000-02-23^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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