http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04244047-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cff62ee19588f053fe1f229df4e6c756 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-94 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-13 |
| filingDate | 1991-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1cc0ae6930919de373acdfa58f1f1a51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27bd69a7d6fa9bb1a7abc778dbdbfbc8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b73fe0c5d12671ab665f5d3c33efc43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0973df8c2554110606a433900860397e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a2bf71e4ca6dc6a8a3460f240869d51b |
| publicationDate | 1992-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H04244047-A |
| titleOfInvention | Optically active compound and display element |
| abstract | PURPOSE: To provide a new liquid crystal compound having decreased phase- transition temperature and useful as an antiferroelectric liquid crystal material having three stable states and capable of getting a stable molecular orientation at a large area which is difficult to be achieved by conventional ferroelectric smectic liquid crystal. n CONSTITUTION: The objective optically active compound is expressed by formula I (R 1 is 4-16C alkyl; R 2 is 4-12C alkyl; * represents optically active atom), e.g. (R)-4'-dodecyloxybiphenyl-4-carboxylic acid 4-(1- trifluoromethylheptyloxycarbonyl)-3-methylphenyl ester. The compound can easily be produced by reacting a compound of formula II with a compound of formula III in the presence of a dehydrating condensation agent such as dicyclohexylcarbodiimide and a catalyst such as N,N-dimethyl-4-aminopyridine in a solvent such as methylene chloride and chloroform. Since the compound exhibits chiral smectic CA phase over a broad temperature range near room temperature, it is useful as the above antiferroelectric liquid crystal material and a display element. n COPYRIGHT: (C)1992,JPO&Japio |
| priorityDate | 1991-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.