http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02172939-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1837840b0d7f1d216335a0331a4bd15a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-025 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P41-00 |
| filingDate | 1988-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51f327ef9c8da799969bfadca28f5770 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f4aecc392dc32c7e8bea7c54fd21bc8 |
| publicationDate | 1990-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02172939-A |
| titleOfInvention | Optically active compound and production thereof |
| abstract | NEW MATERIAL:An optically active compound expressed by formulas I and II (R 1 is 1-15C alkyl or alkoxy; X 1 to X 3 are H, halogen or CN; R 2 is 1-15C alkyl). n EXAMPLE: 4'-(1-Methylheptyloxy)-4-{4-(1-butanoyloxyethyl)phenoxymethyl}biphenyl [(S, R)]-isomer. n USE: Useful as a component of ferroelectric liquid crystal mixtures, having excellent compatibility with existing smectic liquid crystals and capable of providing a liquid crystal mixture having a high Ps value. n PREPARATION: A racemic modification expressed by formula III and an ester of 2,2,2-trichloroethanol with a 2-16C fatty acid are reacted with an enzyme having esterase activity, preferably a microorganism belonging to the genus Pseudomonas or Achromobacterium or an enzyme produced from the animal pancreas in an organic solvent to selectively esterify only the (R)-isomer of the above-mentioned racemic modification. The unreacted (S)-isomer is then separated to readily provide the optically active substance expressed by formulas I and II. n COPYRIGHT: (C)1990,JPO&Japio |
| priorityDate | 1988-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.