http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2309810-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_067fa7a6d043b14968b8dca94aa94e37 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-46 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0212 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-74 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-657 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-203 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-597 |
| filingDate | 2005-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2008-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_58dc7d8627793bf3a8f82132e4e81abf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_785272fd5d1d23f875296636fc8a58e3 |
| publicationDate | 2008-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2309810-T3 |
| titleOfInvention | SYNTHESIS OF CYCLOPENTONES. |
| abstract | Process for the preparation of a compound of formula (See formula) in which R represents an optionally substituted C1-8 alkyl or alkenyl group or an optionally substituted C5-6 aromatic group; and R 1, R 2, R 3 and R 4 represent, simultaneously or independently, a hydrogen atom, an optionally substituted C1-8 alkyl or alkenyl group or an optionally substituted C5-6 aromatic group; said process comprising the reaction between a dwarf of formula (See formula) in which R, R 1, R 3 and R 4 have the same meaning as in formula (I); with an aldehyde of formula (See formula) in which R 2 has the same meaning as in formula (I); and the reaction being carried out between said enone (II) and the aldehyde (III) in the presence of a catalytic system comprising: i) at least one metal complex of formula (See formula) in which M is Ti (IV) or Zr ( IV), R 5 represents a linear or branched C1-6 alkyl group, X represents a halide and n represents an integer from 1 to 3; and ii) at least one co-component selected from the group consisting of a) alkylcarboxylic or aromatic acid anhydride containing from 2 to 10 carbon atoms; b) an anhydrous sulfate, chloride or bromide of a metal cation selected from the group consisting of Li +, Na +, K +, Cs +, Mg 2+, Ni 2+, Ca 2+, Zn 2+, Fe 3+ and Al 3+ ; c) an insoluble inorganic material that can form a clathrate with water; and d) a C4-C15 orthoester, BF3, N-methyl-N-trimethylsilyl-trifluoroacetamide, 1-trimethylsilylimidazole and ClSi (R 6) 3, R 6 representing a C1-5 alkyl group. |
| priorityDate | 2004-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 89.