| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-40 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C23-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-083
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C46-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-143
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-676
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-665
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-683 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-66 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-143
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-683
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-665
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-67
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C23-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C46-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-093 |
| filingDate |
1999-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2002-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2002538128-A |
| titleOfInvention |
Synthesis of 4-ketocyclopentene and cyclopentadiene compounds |
| abstract |
(57) [Summary]nPROBLEM TO BE SOLVED: To synthesize 4-ketocyclopentene and substituted 4-ketocyclopentene compounds which are compounds useful for synthesizing a cyclopentadienyl-containing metal complex useful for an addition polymerization catalyst composition.nSOLUTION: Starting from the corresponding 1-carbohydrocarbyloxy-2-keto-4-hydroxy-5-cyclopentene, reduction is followed by decarboxylation. The ketone then reduces the ketone to form an alcohol, displaces the hydroxyl function of the alcohol with a leaving group under displacement conditions, and deprotonates the resulting product under base-induced elimination conditions to give cyclopentadiene By forming a compound, it can be converted to a cyclopentadiene compound. Alternatively, functionalized cyclopentadienyl compounds can be produced without isolation of unsubstituted cyclopentadienyl compounds by combining a substitution step with an elimination and deprotonation step in a single unit operation. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101098519-B1 |
| priorityDate |
1999-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |