http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BR-PI0517248-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2ef0bc38fbc6152119a56862684b920e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B55-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B55-00 |
| filingDate | 2005-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_55e5ab9e7bed2c52ecfac1ba0176fc6c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72d22a7e10456c3950f997854d993f9b |
| publicationDate | 2008-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BR-PI0517248-A |
| titleOfInvention | catalyst compositions and their use in the enrichment of enanciomerically enriched substrates |
| abstract | CATALYST COMPOSITIONS AND USE OF THE SAME IN THE DEENRICHING OF ENANCIOMICALLY ENRICHED SUBSTRATES. The present invention relates to a process for the de-enrichment of enanciomerically enriched compositions comprising reacting an enanciomerically enriched composition comprising at least a first enanciomer or diastereoisomer of a substrate comprising a carbon-heteroatom bond, wherein the carbon is a chiral center and the heteroatom is a group V heteroatom, in the presence of a catalyst system and optionally a reaction promoter to provide a product composition comprising the first and second substrate enanciomers or diastereolsomers having a carbon-heteroatom bond , the ratio of the second to the first enanciomer or diastereoisomer in the product composition being greater than the ratio of the second to the first enanciomer or diastereoisomer in the enanciomerically enriched composition. Preferred catalyst systems include the transition metal halide complex of the formula wherein M is a transition metal; X is a halide; Y is an optionally substituted hydrocarbyl complexing group, an optionally substituted perhalogenated hydrocarbyl complexing group or an optionally substituted cyclopentadienyl complexing group; and n, p and r are integers. The reaction promoter is preferably a halide salt. |
| priorityDate | 2004-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419559581 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID297 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID456370357 |
Total number of triples: 15.