http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-19748438-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2602-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2019-325 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-3469 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-3444 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D405-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-017 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-0812 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-081 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-225 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-322 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D405-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-225 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-017 |
| filingDate | 1997-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5801f11a07238a9aa9c01a90fc343ea8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31e8651b196de6b4e943311b4a6738e4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_806ca010c6b742a63ebc5d3e649e2e07 |
| publicationDate | 1999-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-19748438-A1 |
| titleOfInvention | 1,1,6,7-tetrafluoro-1,2,3,4-tetrahydronaphthalene derivatives and their use in liquid-crystalline mixtures |
| abstract | 1,1,6,7-tetrafluoro-1,2,3,4-tetrahydro- naphthalene derivatives containing not more than 4 rings with 5 or more ring members are new. 1,1,6,7-Tetrafluoro-1,2,3,4- tetrahydro-naphthalene derivatives of formula (I) with not more than 4 ring systems with 5 or more ring members. B = formula (II); R<1>, R<2> = (a) H, OCF3, CF3, CN, F, Cl, OCHF2, OCH2F, CHF2 or CH2F (not more than one of the groups R<1> and R<2> is of type a), (b) 1-20C alkyl (with or without asymmetric carbon), optionally with one or more non-adjacent, non-terminal CH2 groups replaced by O, S, COO, OCO, OCOO or SiMe2 and/or with one or more CH2 replaced by -CH=CH-, -C equivalent to C-, cyclopropane-1,2-diyl, 1,4-phenylene, 1,4- cyclohexene or 1,3-cyclopentene and/or with one or more H replaced by F and/or Cl and/or with terminal CH3 groups replaced by one of 20 different optically active or racemic chiral groups (4 examples shown of formula (III)-(VI); R<3>-R<7> = (a) H, (b) 1-16C alkyl (with or without asymmetric C), optionally with 1 or more non-adjacent, non-terminal CH2 replaced by O and/or with one or two CH2 replaced by -CH=CH- or (c) R<4> + R<5> = -(CH2)4- or -(CH2)5- if attached to an oxirane, dioxolane, tetrahydrofuran, tetrahydropyran, butyrolactone or valerolactone system; M<1>-M<4> = COO, OCO, COS, SCO, CSO, CSS, OCS, SCS, CH2O, OCH2, CH2S, SCH2, -CH=CH-, -C equivalent to C-, -CH2CH2COO-, -OCOCH2CH2- or a single bond; A<1>-A<4> = 1,4- phenylene, pyridine-2,5-diyl or naphthalene-2,6-diyl (optionally with 1 or more H atoms replaced by F, Cl and/or CN in each case), pyrazine-2,5-diyl, pyridazine-3,6-diyl, pyrimidine-2,5-diyl or thiophene-2,5-diyl (all optionally with 1 or 2 H replaced by F, Cl and/or CN), (1,3,4)-thiadiazole- 2,5-diyl, 1,3-dioxan-2,5-diyl, 1,3-dithiane-2,5-diyl or 1,3- thiazole-2,4- or -2,5-diyl or thiophene-2,4-diyl (all optionally with one H replaced by F, Cl and/or CN), 1,4- cyclohexene (optionally with 1 or 2 H replaced by CN and/or CH3 and/or F) or 1-alkyl-1-sila-cyclohexane-1,4-diyl; a, b, c, d = 0 or 1. Independent claims are also included for: (a) liquid crystal (LC) mixtures, especially ferroelectric LC mixtures, containing one or more compounds (I) in amounts of 0.01-80 wt.%; and (b) ferroelectric switching and/or display devices containing a ferroelectric LC mixture as in (a) and preferably operated in the tau Vmin-mode. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6746728-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1369406-A1 |
| priorityDate | 1997-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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