http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4853477-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-487 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N53-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N53-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B57-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-487 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-747 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-743 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C61-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-39 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-60 |
| filingDate | 1987-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1989-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c5610f68a5ec26174743e73aef759ff2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a594ef8cf244e541cea0c49f084bf3b0 |
| publicationDate | 1989-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4853477-A |
| titleOfInvention | Separation of diastereomers of cyclopropanecarboxylic acid esters |
| abstract | A process for the separation of mutually diastereomeric forms of a cyclopropanecarboxylic acid ester of the formula <IMAGE> in which R1 represents hydrogen or halogen, R2 represents hydrogen or halogen, R4 represents hydrogen, Cn, -C=CH or CH3, R5 represents hydrogen or halogen, and R6 represents hydrogen or halogen, comprising reacting such ester in a first stage with about half or an equal molar amount of a second compound of the formula <IMAGE> in which R7, R8 and R9 represent hydrogen or methyl, or, together with the C atom to which they are bound and with the adjacent C atoms of the basic structure form a fused 6-membered ring, R10 represents hydrogen, methyl, ethyl, halogen, amino, methylamino or dimethylamino, and R11 represents hydrogen, methyl or ethyl, to form complexes and in a second stage allowing the less soluble complex of one part of the diastereomers to crystallize out in the presence of a solvent selected from the group consisting of a lower aliphatic alcohol or aliphatic or cyclic hydrocarbon, and separating off the crystallized complex from the still dissolved material. The first stage complexes are new and the resulting purified enantiomeric mixture is also new. |
| priorityDate | 1986-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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