http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-19990008435-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D217-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D401-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-3444 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D217-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D401-04 |
| filingDate | 1996-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1999-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-19990008435-A |
| titleOfInvention | Trifluorotetrahydroisoquinoline derivatives and their use in liquid crystal mixtures |
| abstract | The present invention relates to a 1,8,8-trifluoro-5,6,7,8-tetrahydroisoquinoline derivative of formula (1).n n n [Formula I]n n n R 1 (-M 1 ) a (-A 1 -M 2 ) b (-A 2 -M 3 ) C -B (-M 4 -A 3 ) d (-M 5 -A 4 ) e (-M 6 ) f -R 2 n n n In the formula, group B is represented by formula (II)n n n [Formula II]n n n n n n n n R 1 and R 2 are, for example, alkyl groups having 1 to 20 carbon atoms,n n n M 1 , M 2 , M 3 , M 4 , M 5 and M 6 are, for example, -O-, -CO-O-, -O-CO- or a single bond,n n n A 1 , A 2 , A 3 and A 4 are, for example, 1, 4-phenylene, pyrimidine-2, 5-diyl or trans-1, 4-cyclohexylene,n n n a, b, c, d, e and f are 0 or 1, provided that the sum of b, c, d and e is 0, 1 or 2.n n n Compounds of formula (I) are colorless in their pure state and generally form a liquid crystal mesophase in a temperature range advantageous for electro-optic applications. The compound is chemically and thermally stable and light stable. |
| priorityDate | 1995-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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