| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8b919a09598a02c07e8429b1441b76e1 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B57-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B57-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-612
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-30 |
| filingDate |
1992-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1993-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_277d592b24144f0c04bbb0b589d3c819
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfcd23e3f2b4494ddb727aa348bec8db
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2191e6c532341736b0d89f4232c7f94 |
| publicationDate |
1993-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5235095-A |
| titleOfInvention |
Preparation of optically active aliphatic carboxylic acids |
| abstract |
An improved process for the separation of enantiomers of a racemic mixture of certain aliphatic carboxylic acids or esters thereof is disclosed. The process involves: (i) forming a salt solution comprising said racemic mixture of a C 1 to C 6 linear or branched aliphatic carboxylic acid and an organic or inorganic base; (ii) treating said salt solution with one-half molar equivalent of a chiral organic nitrogenous base having a base strength no stronger than said organic or inorganic base; and (iii) precipitating from the reaction solution formed in step (ii) the less soluble diastereomeric salt, the improvement being adding to the salt solution of step (ii) an inert organic or inorganic base that is soluble in the salt solution. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5371282-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5859292-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6525214-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5874614-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5847202-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5696165-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005137262-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6242000-B1 |
| priorityDate |
1992-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |