http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5164519-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D317-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B57-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-32 |
| filingDate | 1991-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1992-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23211ff7ab88359edd8955b4b7026c74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3bb87ce3296383d3ae611524812ec3d0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9713f27629d0ee4cd189ef9dfe4deaf1 |
| publicationDate | 1992-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5164519-A |
| titleOfInvention | Process for the separation of R and S-2,2-R1,R2 -1,3-dioxolane-4-carboxylic acid |
| abstract | A process is disclosed for preparing a 2,2-R1,R2-1,3-dioxolane-4-carboxylic acid or salt thereof rich in either the R or S enantiomer which process comprises a) preparing a solution which contains a non-racemic mixture of R and S enantiomer of a carboxylate of the formula <CHEM> and M<n+> ions, wherein R1 and R2 are each, independently, H or an unsubstituted or substituted alkyl group, or R1 and R2, together with the carbon atom to which they are attached, form an unsubstituted or substituted carbocyclic ring, and M is an alkali metal, an alkaline earth metal, a group IIb metal, boron, or an ammonium, di- or tri-alkanolammonium ion having 2 or 3 carbon atoms or a tetra C1-C16 alkyl ammonium ion, and n is the valency of M; b) reducing the solubility of the M<n+> salt of compound (I); and c) separating the resulting crystals from the mother liquor. e |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5433190-A |
| priorityDate | 1989-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.