WO1994020443A1 - Dicyclohexylethylene derivative - Google Patents
Dicyclohexylethylene derivative Download PDFInfo
- Publication number
- WO1994020443A1 WO1994020443A1 PCT/JP1994/000389 JP9400389W WO9420443A1 WO 1994020443 A1 WO1994020443 A1 WO 1994020443A1 JP 9400389 W JP9400389 W JP 9400389W WO 9420443 A1 WO9420443 A1 WO 9420443A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- trans
- weight
- cyclohexyl
- liquid crystal
- trifluorophenyl
- Prior art date
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C25/00—Compounds containing at least one halogen atom bound to a six-membered aromatic ring
- C07C25/18—Polycyclic aromatic halogenated hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/23—Preparation of halogenated hydrocarbons by dehalogenation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/013—Preparation of halogenated hydrocarbons by addition of halogens
- C07C17/04—Preparation of halogenated hydrocarbons by addition of halogens to unsaturated halogenated hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
- C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
- C07C17/2635—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions involving a phosphorus compound, e.g. Wittig synthesis
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/35—Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or of halogen atoms in the reaction
- C07C17/358—Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or of halogen atoms in the reaction by isomerisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C25/00—Compounds containing at least one halogen atom bound to a six-membered aromatic ring
- C07C25/24—Halogenated aromatic hydrocarbons with unsaturated side chains
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/511—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups
- C07C45/513—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups the singly bound functional group being an etherified hydroxyl group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/56—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds
- C07C45/57—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom
- C07C45/59—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom in five-membered rings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
- C09K19/3048—Cyclohexane rings in which at least two rings are linked by a carbon chain containing carbon to carbon double bonds
Definitions
- the present invention relates to a dicyclohexylethylene derivative, and more particularly, to a dicyclohexylethylene derivative, which is a compound suitable as one component of a display material, and a liquid crystal composition having the derivative.
- liquid crystal display devices have been introduced as display devices in personal computers and office automation equipment, and their importance has been rapidly increasing.
- STN super-twisted nematic
- SBE super-twisted-by-reflection effect
- TFT thin film transistors
- the reason for this is that the amount of information is increased by using these methods, and as a result, it is possible to display a blank image and enlarge the screen.
- the liquid crystal materials used in these display methods have various characteristics, such as having a liquid crystal phase in the temperature range where the display element is used, and are stable against environmental factors (moisture, heat, air, light, electricity, etc.). That it is colorless, has a large (or small) refractive index anisotropy (hereinafter abbreviated as ⁇ ), has a large dielectric anisotropy (hereinafter abbreviated as ⁇ ), and has a high viscosity.
- ⁇ refractive index anisotropy
- ⁇ dielectric anisotropy
- liquid crystal materials actually used include several types of liquid crystal compounds or A liquid crystal composition obtained by mixing a compound having a special purpose. Therefore, the liquid crystal compound must have good solubility in other liquid crystals.
- a liquid crystal compound is a compound which does not show any mesophase itself but contributes to various properties as a liquid crystal when mixed with a liquid crystal substance.
- a compound represented by the following formula ( ⁇ ) is known as a compound similar to the present invention.
- R represents a linear alkyl group having 1 to 8 carbon atoms.
- the compounds of the formulas (III) and (IV) have a large dielectric anisotropy ⁇ similarly to the compounds of the present invention, but have a drawback that their solubility in other liquid crystal compounds at low temperatures is poor, so that they are somewhat Hard to use.
- R represents an alkyl group having 1 to 10 carbon atoms.
- the compound of formula (III) is very similar in structure to the compound of the present invention, and the compound of the present invention has a pentenyl group in the central bonding group, whereas the compound of the formula (III) has a ethanediyl group.
- the only difference is the central linking group.
- the latter has been found to have an induced smectic phase at low temperatures, and is liable to have the disadvantage that the electro-optical response at low temperatures is extremely poor.
- the present inventors have sought a nematic compound having a dielectric anisotropy that is equal to or higher than that of the compound of the formula (III) and that does not generate a smectic phase at low temperature when mixed with another nematic liquid crystal. ing.
- a wide operating temperature range, fast response speed, low drive voltage, etc. are required in various liquid crystal display systems, not limited to the above-mentioned liquid crystal display systems.
- the present invention provides a dicyclohexylethylene derivative represented by the following general formula (I) and a liquid crystal composition having the derivative as at least one component.
- R represents a linear alkyl group having 1 to 10 carbon atoms
- X represents a fluorine atom or a trifluoromethyl group
- all 1,4-cyclohexylene groups are trans-type.
- the ethenzyl group is also in trans form.
- the compound of the present invention is represented by the following formulas (la) and (lb). Among these compounds, compounds in which n is 2 to 7 are preferable.
- the compound represented by the formula (I) may be another liquid crystal compound, for example, an ester, a Schiff base, an ethane, an acetylene, an azoxy, a biphenyl, a cyclohexane, a cyclohexene, or a pyridine.
- excellent compatibility with existing liquid crystalline compounds such as gin, pyrimidine, dioxane, and fluorine compounds.By mixing with these compounds or mixtures, liquid crystal materials suitable for various applications are prepared. can do.
- the compounds of the present invention are very stable against environmental factors (moisture, heat, air, light, electricity, etc.).
- the compound of the formula (I) is also suitable as a raw material for synthesizing other liquid crystal compounds.
- a liquid crystal compound of the formula (VI) can be obtained by catalytic reduction.
- R and X have the meaning given above.
- a Grignard reagent prepared from aryl Promide of the formula (1), for example, P-toluenesulfonic acid, hydrogen sulfate, hydrochloric acid, sulfuric acid
- a dehydration reaction is performed in the presence of an acid catalyst such as a cation exchange resin to obtain a cyclohexene derivative of the formula (2).
- This is catalytically reduced in the presence of a Pd, Ni, Pt-based catalyst or the like, and further treated with an acidic aqueous solution to obtain a cyclohexanone derivative of the formula (3).
- an imide obtained by treating methoxymethyltriphenylphosphonium chloride with a base such as n-butyllithium or potassium-t-butoxide is reacted with a compound of the formula (3).
- a base such as n-butyllithium or potassium-t-butoxide
- an aldehyde derivative of the formula (4) is obtained.
- the phosphonium salt of the formula (5) is treated with a base such as n-butyllithium or potassium-t-butoxide to react with the ylide.
- a xyl dimethylene derivative is obtained.
- This cis form is converted to a trans form to give the compound of the formula (I) of the present invention.
- the ethylene derivative of formula (I ') is oxidized with a peroxide such as m-chloroperbenzoic acid, then brominated with dibromotrifuunylphosphorane, and finally reduced with Zn.
- a dicyclohexylethylene derivative of the formula (I) which is a compound of the present invention is obtained.
- the liquid crystal composition of the present invention comprises at least two liquid crystal compounds, at least one of which is a liquid crystal compound represented by the above formula (I).
- liquid crystal composition of the present invention include
- a component containing one or more compounds having a high dielectric anisotropy of 5 ( ⁇ ) A component containing one or more compounds having a high dielectric anisotropy of 5 ( ⁇ ), (ii) A component containing one or more compounds of a low dielectric anisotropy of 5 which is I ⁇ I (C),
- (II) 8 (at least one component selected from the group consisting of one or more compounds having a clearing point exceeding TC (D)).
- the liquid crystal composition provided by the present invention preferably includes, in addition to the component ( ⁇ ) containing at least one compound represented by the formula (I), the above (a) to ( ⁇ ).
- Preferred compounds as the component (II) of the liquid crystal composition of the present invention are shown below.
- R represents an alkyl or alkenyl group having 1 to 10 carbon atoms, and one or two non-adjacent methylene groups of the group may be replaced by an oxygen atom.
- Preferred compounds as component (C) of the liquid crystal composition of the present invention are shown below.
- R and R ′ each independently represent an alkyl or alkenyl group having 1 to 10 carbon atoms, and one or two non-adjacent methylene groups of the group may be replaced by an oxygen atom. Good.
- component (D) of the liquid crystal composition of the present invention are shown below.
- R and R ′ each independently represent an alkyl or alkenyl group having 1 to 10 carbon atoms, and one or two non-adjacent methylene groups of the group may be replaced by an oxygen atom. Good.
- Preferred compounds as the other component (E) in the liquid crystal composition of the present invention are shown below.
- R represents an alkyl or alkenyl group having 1 to 10 carbon atoms, and one or two non-adjacent methylene groups of the group may be replaced by an oxygen atom.
- side substituent (F) means an F atom or an unsubstituted H atom.
- N 1 point Nematic isotropic liquid phase transition point
- THF tetrahydrofuran
- reaction solution was further stirred for 4 hours, and extracted with 300 ml of a saturated aqueous solution of ammonium chloride and 300 ml of ethyl acetate. After washing with saturated saline, magnesium sulfate was added and dried. After concentration, 500 m of heptane was added, and the precipitated crystals were filtered. The filtrate was concentrated and subjected to column chromatography with a silica gel column using a heptane solvent, followed by concentration. To this was added 150 mL of 2N hydrochloric acid and 300 mL of THF, stirred for 8 hours at room temperature, added 300 mL of ethyl acetate and extracted, and extracted this saturated solution with saturated sodium carbonate.
- the NMR spectrum shows the target substance (Erythro 1,2—Jib mouth mo 1,1 (trans-14-propylcyclohexyl)) 1 2 ′ — (trans-1 4-— (2,3,4— Trifluorophenyl) cyclohexyl) ethane).
- a 1-pound three-neck flask containing 57.ig of methoxymethyltriphenylphosphonium chloride and 50 m of THF was cooled to 110, and 18.9 g of potassium t-butoxide was added. After the reaction solution was stirred at O'C for 1 hour, a 100 m THF solution of 29.4 g of the compound obtained in (ii) was added dropwise. The reaction solution was further stirred for 4 hours, and extracted by adding 300 mL of a saturated aqueous solution of ammonium chloride and 300 mL of ethyl acetate.
- the extract was washed with brine, dried over magnesium sulfate, concentrated, and added with 500 ml of heptane, and the precipitated crystals were filtered.
- the filtrate was concentrated, subjected to column chromatography using a silica gel column with a heptane solvent, and concentrated again.
- the extract was washed with an aqueous sodium carbonate solution and then with a saturated saline solution. Add magnesium sulfate, dry and concentrate 3 1.
- the NMR spectrum of this product shows the target substance (Eris 1-, 2-Jib-mode 1'-1 (trans- 4-propyl-hexyl) hexyl 2'-) (Trans-4-1 (3,5-difluoro-1 4-) Trifluoromethylphenyl) hex hexyl) ethane).
- the NI point of the liquid crystal composition A consisting of 30 parts by weight was 52.3, ⁇ was ⁇ 0.7, ⁇ was 0.119, and the viscosity at 20 was 22 c ⁇ .
- the compound shown in Example 1 of the present invention ( ⁇ ) ⁇ —2- (trans-4- (3> 45-trifluorophenyl) cyclohexyl) 1-1-1
- the liquid crystalline composition to which 15 parts by weight of trans (4-n-butyl D-bicyclohexyl) ethene was added had an NI point of 53.2, ⁇ of 10.8, ⁇ of 0.119, and a viscosity at 20 of 25. , 0 cP.
- the crystals did not precipitate even after standing in the _ 2 O'C freezer for 20 days.
- the compound of the present invention can increase the NI point, suppress the increase in viscosity as much as possible, and is a compound having good low-temperature compatibility. Comparative example
- Example 3 (E) —2— (trans-1-4- (3,4,5-trifluorophenyl) cyclohexyl) 111 (trans-1-41-n-propylcyclohexyl) A liquid crystal composition A and a liquid crystal composition B to which the compound (A) and the compound (B) represented by the following formulas were respectively added were prepared, and their characteristics were examined in the same manner as in Example 3.
- a liquid crystal composition comprising 5% by weight of 4- (trans-4-propylcyclohexyl) -12-fluoro-1,4-butyltran was prepared and its physical properties were measured.
- the NI point was' 7.17.1, ⁇ ⁇ . : 5.7, ⁇ n: 0.132, 20.
- a liquid crystal composition comprising 3% by weight of 4-fluorophenyl trans-14- (trans-14-pentylcyclylhexyl) cyclohexanecarboxylate was prepared and its physical properties were measured.
- the NI point was 87.6. , ⁇ ⁇ : 4.3, mm ⁇ : 0,0919, ⁇ ⁇ : 17.7 cP, V th: 2.22 V.
- a liquid crystal composition composed of 4-(trans-4- (trans-14-propylcyclohexyl) cyclohexyl) toluene 5 wt% was prepared and its physical properties were measured.
- the NI point was 79.6. , ⁇ ⁇ : 4.9, mm ⁇ : 0.0762, ⁇ 20.7 c P. V th: 1.9 3 V.
- a liquid crystal composition composed of 4-(trans-1-4-propylcyclohexyl) -12-fluoro-4'-butyrtran was prepared at 6% by weight, and its physical properties were measured.
- the NI point was 87.6 '( :, ⁇ : 8.5, ⁇ : 0.1498, ?? 20 : 25.7 cP, Vth: L78V.
- a liquid crystal composition comprising 8% by weight 55% 11-penpentyl-yl- 22-((44'-fluoro-biphenyl-2-yl) pyrimidine 8% by weight was prepared and its physical properties were measured.
- N 72.2, ⁇ : 7.6, mm ⁇ : 0.1572, ?? 20 : 30.3 c ⁇ Vth: 1.74 V.
- a liquid crystal composition containing 4% by weight of 4- (2- (trans-14-propylcyclohexyl) ethyl) -14, —provirtolan was measured and its physical properties were measured.
- the NI point was 8: 1. 3 X ⁇ e: 4.4, ⁇ n: 0.161, 1,? ? 20 : 23.5 cP, Vth: 2.37 V.
- a liquid crystal composition comprising 8% by weight of 1- (trans-14- (trans-14-propyicyclohexyl) cyclohexyl) -12-fluorene benzonitrile was prepared and its physical properties were measured. , NI point: 69.0, mu ⁇ : 13.9, mu ⁇ : 0.122, 4,? ? 20 : 34.5 c ⁇ , Vth: 1.24 V
- a liquid crystal composition composed of 2% by weight of 4 '-(trans-14-pentylcyclohexyl) -14- (trans-14-pentylcyclohexyl) -12-fluorobiphenyl was prepared.
- a nematic composition was prepared comprising 7% by weight of 4- (trans-14-propylcyclohexyl) -14, -methoxymethylbiphenyl.
- a nematic composition comprising 5% by weight of 2- (trans-41- (trans-4-1-propylcyclohexyl) cyclohexyl) -1- (4-propylphenyl) ethane was prepared.
- the compound of the present invention has a high NI point, the operating range of the liquid crystal display device can be widened, and since the viscosity is low, the response speed of the liquid crystal display device can be improved.
- the driving voltage of the element can be reduced. Furthermore, since it is very stable against environmental factors, it can be used for various liquid crystal display devices (for example, an active matrix system using TFT).
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Polymerisation Methods In General (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51982794A JP3418398B2 (ja) | 1993-03-10 | 1994-03-10 | ジシクロヘキシルエチレン誘導体 |
DE69413808T DE69413808D1 (en) | 1993-03-10 | 1994-03-10 | Dicyclohexylethylenderivate |
KR1019950703793A KR100283971B1 (ko) | 1993-03-10 | 1994-03-10 | 디사이클로헥실에틸렌 유도체 |
EP94909299A EP0688754B1 (en) | 1993-03-10 | 1994-03-10 | Dicyclohexylethylene derivative |
AU62197/94A AU676542B2 (en) | 1993-03-10 | 1994-03-10 | Dicyclohexylethylene derivative |
US08/522,322 US5641432A (en) | 1993-03-10 | 1994-03-10 | Dicyclohexylethylene derivative |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7755193 | 1993-03-10 | ||
JP5/77551 | 1993-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994020443A1 true WO1994020443A1 (en) | 1994-09-15 |
Family
ID=13637158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1994/000389 WO1994020443A1 (en) | 1993-03-10 | 1994-03-10 | Dicyclohexylethylene derivative |
Country Status (8)
Country | Link |
---|---|
US (1) | US5641432A (ja) |
EP (1) | EP0688754B1 (ja) |
JP (1) | JP3418398B2 (ja) |
KR (1) | KR100283971B1 (ja) |
AT (1) | ATE171929T1 (ja) |
AU (1) | AU676542B2 (ja) |
DE (1) | DE69413808D1 (ja) |
WO (1) | WO1994020443A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0834490A4 (en) * | 1995-06-15 | 2001-09-26 | Chisso Corp | CONNECTIONS WITH AN ALKYL-SUBSTITUTED ALKENYLENE UNIT AND LIQUID CRYSTAL PREPARATIONS. |
US6350417B1 (en) * | 1998-11-05 | 2002-02-26 | Sharper Image Corporation | Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices |
DE10018599B4 (de) * | 1999-05-03 | 2009-02-05 | Merck Patent Gmbh | Flüssigkristallines Medium |
DE102004024456B4 (de) * | 2003-05-21 | 2016-05-12 | Merck Patent Gmbh | Flüssigkristallines Medium und seine Verwendung |
CN1329481C (zh) * | 2005-10-17 | 2007-08-01 | 清华大学 | 含有单氟乙撑桥键的液晶化合物及其制备方法 |
CN100497285C (zh) * | 2007-04-30 | 2009-06-10 | 西安瑞联近代电子材料有限责任公司 | 反-4-(反-4′-烷基环己基)环己基甲醛的合成方法 |
JP5146719B2 (ja) * | 2007-06-29 | 2013-02-20 | Dic株式会社 | シクロヘキシルメチルホスホナート誘導体 |
US9757379B2 (en) | 2012-11-14 | 2017-09-12 | The Board Of Regents Of The University Of Texas System | Inhibition of HIF-2α heterodimerization with HIF1β (ARNT) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02233626A (ja) * | 1989-03-07 | 1990-09-17 | Chisso Corp | トリフルオロベンゼン誘導体 |
JPH03127748A (ja) * | 1989-10-13 | 1991-05-30 | Chisso Corp | ジシクロヘキシルエチレン誘導体 |
JPH0495042A (ja) * | 1990-08-10 | 1992-03-27 | Dainippon Ink & Chem Inc | エーテル結合を有するフッ素系3環式化合物 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0684339B2 (ja) * | 1987-11-16 | 1994-10-26 | チッソ株式会社 | シクロヘキサン誘導体 |
DE4027315A1 (de) * | 1989-08-30 | 1991-03-07 | Merck Patent Gmbh | Halogenierte benzolderivate und fluessigkristallines medium |
JP2732335B2 (ja) * | 1992-05-28 | 1998-03-30 | チッソ株式会社 | 液晶組成物およびこの組成物を用いた液晶表示素子 |
-
1994
- 1994-03-10 WO PCT/JP1994/000389 patent/WO1994020443A1/ja active IP Right Grant
- 1994-03-10 KR KR1019950703793A patent/KR100283971B1/ko active IP Right Grant
- 1994-03-10 EP EP94909299A patent/EP0688754B1/en not_active Expired - Lifetime
- 1994-03-10 AU AU62197/94A patent/AU676542B2/en not_active Ceased
- 1994-03-10 US US08/522,322 patent/US5641432A/en not_active Expired - Lifetime
- 1994-03-10 JP JP51982794A patent/JP3418398B2/ja not_active Expired - Lifetime
- 1994-03-10 DE DE69413808T patent/DE69413808D1/de not_active Expired - Lifetime
- 1994-03-10 AT AT94909299T patent/ATE171929T1/de not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02233626A (ja) * | 1989-03-07 | 1990-09-17 | Chisso Corp | トリフルオロベンゼン誘導体 |
JPH03127748A (ja) * | 1989-10-13 | 1991-05-30 | Chisso Corp | ジシクロヘキシルエチレン誘導体 |
JPH0495042A (ja) * | 1990-08-10 | 1992-03-27 | Dainippon Ink & Chem Inc | エーテル結合を有するフッ素系3環式化合物 |
Also Published As
Publication number | Publication date |
---|---|
EP0688754B1 (en) | 1998-10-07 |
ATE171929T1 (de) | 1998-10-15 |
US5641432A (en) | 1997-06-24 |
KR100283971B1 (ko) | 2001-03-02 |
AU676542B2 (en) | 1997-03-13 |
EP0688754A1 (en) | 1995-12-27 |
DE69413808D1 (en) | 1998-11-12 |
EP0688754A4 (en) | 1996-04-17 |
KR960700985A (ko) | 1996-02-24 |
JP3418398B2 (ja) | 2003-06-23 |
AU6219794A (en) | 1994-09-26 |
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