EP0513069A1 - Geminale dimethylalkyl-verbindungen, verfahren zu ihrer herstellung und ihre verwendung in flüssigkristallinen mischungen - Google Patents

Geminale dimethylalkyl-verbindungen, verfahren zu ihrer herstellung und ihre verwendung in flüssigkristallinen mischungen

Info

Publication number
EP0513069A1
EP0513069A1 EP91902950A EP91902950A EP0513069A1 EP 0513069 A1 EP0513069 A1 EP 0513069A1 EP 91902950 A EP91902950 A EP 91902950A EP 91902950 A EP91902950 A EP 91902950A EP 0513069 A1 EP0513069 A1 EP 0513069A1
Authority
EP
European Patent Office
Prior art keywords
compounds
straight
dimethyl
dimethylalkyl
chain
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91902950A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gerhard Illian
Ingrid MÜLLER
Takamasa Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0513069A1 publication Critical patent/EP0513069A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/26—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/32—One oxygen, sulfur or nitrogen atom
    • C07D239/34—One oxygen atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/32—One oxygen, sulfur or nitrogen atom
    • C07D239/38—One sulfur atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
    • C07D285/01—Five-membered rings
    • C07D285/02—Thiadiazoles; Hydrogenated thiadiazoles
    • C07D285/04—Thiadiazoles; Hydrogenated thiadiazoles not condensed with other rings
    • C07D285/12—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
    • 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
    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
    • C09K19/2007—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
    • 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
    • C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3441—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom
    • C09K19/345—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom the heterocyclic ring being a six-membered aromatic ring containing two nitrogen atoms
    • C09K19/3458—Uncondensed pyrimidines
    • 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
    • C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3441—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom
    • C09K19/345—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom the heterocyclic ring being a six-membered aromatic ring containing two nitrogen atoms
    • C09K19/3458—Uncondensed pyrimidines
    • C09K19/3463—Pyrimidine with a carbon chain containing at least one asymmetric carbon atom, i.e. optically active pyrimidines
    • 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
    • C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3441—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom
    • C09K19/345—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom the heterocyclic ring being a six-membered aromatic ring containing two nitrogen atoms
    • C09K19/3458—Uncondensed pyrimidines
    • C09K19/3466—Pyrimidine with at least another heterocycle in the chain
    • 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
    • C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3491—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having sulfur as hetero atom
    • C09K19/3497—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having sulfur as hetero atom the heterocyclic ring containing sulfur and nitrogen atoms

Definitions

  • electrically controlled birefringence can be used, as well as for those with smectic LC phases (e.g.
  • a prerequisite for the practical usability of such systems is often the formation of a smectic C phase or a chiral smectic C phase (S c or S c * phase) in a wide temperature range, in particular also at temperatures around and below room temperature. For most known compounds that form an S c phase, this occurs at a temperature that is significantly above room temperature. It is therefore the task of melting point and
  • geminal dimethylalkyl compounds of the general formula (I) are those mentioned
  • R 1 CH 3 - straight-chain or branched (with or without
  • a 1 , A 2 , A 3 the same or different, 1,4-phenylene, in which 2 H
  • branched alkylene with 1 to 16 carbon atoms in which one or two non-adjacent -CH 2 groups by -O-, -S-, -O-CO-; -CO-O-, -CO- or -O-CO-O- can be replaced
  • R 2 , R 3 , R 4 , R 5 identical or different, H or straight-chain or branched alkyl having 1 to 16 or alkenyl having 2 to 16 carbon atoms, in which a -CH 2 group is also represented by -O-, -S- -CO-O-, -O-CO-, -CO- or -O-OC-O- can be replaced k, l, m, n zero or 1
  • R 6 straight-chain alkyl having 1 to 10 carbon atoms.
  • dimethylalkyl compounds in which, in the general formula I, the grouping -A 1 (-M 1 ) k (-A 2 ) 1 (-M 2 ) m (-A 3 ) n - means:
  • R 1 means: straight-chain or branched (with or without asymmetrical carbon atom) alkyl or alkenyl with 2 to 16 carbon atoms, with a CH 2 group also being -O-, -S-, -CO-, -CO- O- or -O-CO- can be replaced,
  • G means: straight-chain or branched alkylene with
  • R 6 means: straight-chain alkyl having 1 to 6 carbon atoms.
  • the new geminal dimethyl-substituted compounds are chemically, photochemically and thermally stable and
  • the melting temperature also has other special advantages.
  • Preferred components for increasing the effective switching angle are the phenylbenzoates and the 5-phenylpyrimidin-2-yl compounds. Another solution to the problem is one
  • Liquid-crystalline mixture which contains at least one compound of the general formula (I).
  • the liquid crystal mixtures consist of 2 to 20, preferably 2 to 15 components, including at least one of the compounds claimed according to the invention.
  • the other constituents are preferably selected from the known compounds with nematic, cholesteric and / or inclined-smectic phases
  • Cinnamic acid esters, cholesterol esters, differently bridged, terminal-polar polynuclear esters of p-alkylbenzoic acids Cinnamic acid esters, cholesterol esters, differently bridged, terminal-polar polynuclear esters of p-alkylbenzoic acids.
  • the liquid crystal mixtures generally contain 0.01 to 70% by weight, preferably 0.05 to 50% by weight, of the compound (s) according to the invention, in particular
  • the compounds according to the invention can be prepared from mesogenic monofunctionally reactive base bodies by linking with
  • Display devices have u. a. the following components: a liquid-crystalline medium,
  • Carrier plates e.g. made of glass or plastic
  • transparent electrodes at least one
  • Color filter layers Other possible components are antireflection, passivation, compensation and barrier layers and electrically non-linear elements, such as. B.
  • TFT Thin film transistors
  • MIM metal insulator metal
  • monofunctional geminal dimethyl compounds can also be produced.
  • the geminal dimethyl compounds can e.g. B. after
  • Compound from Example 5 has particularly favorable properties.
  • the melting point of this compound is around
  • German publishing house for basic material industry VEB (Leipzig), 1974, page 260, No. 4169):
  • the compound of the invention has a melting point which is 34 ° C. lower than that of V5.
  • connection is useful for comparison with the connection from example 6:
  • the substance according to the invention has a melting point which is 15 ° C. lower.
  • the compound of the invention has the advantage that its melting point is 14 ° C lower.
  • this substance has a melting point that is 11 ° C lower.
  • Phase sequence X 73 S c 64 S A 71 I.
  • Comparative Example 19 A comparative component which is essentially of
  • Example 19 differs in that it is not a geminal Ditnethoxyen shows the phase sequence:
  • the substance according to the invention detects one
  • Phase sequence X 83 S 2 87 S A 92 I.
  • Phase sequence X 90 S c 96 S A 106 I.
  • German publishing house for basic material industry VEB (Leipzig), 1974, page 69, No. 672).
  • Phase sequence X 33.5 S c 61 S A 67 N 70 I.
  • the compound of the invention has the advantage that its melting point is 24 ° C lower.
  • 5-octyloxy-2- (4-hexyloxy-phenyl) pyrimidine 8.8 mol% 5-octyloxy-2- (4-octyloxy-phenyl) pyrimidine 3.0 mol% 5-octyloxy-2- (4th -butyloxy-phenyl) -pyrimidine 9.6 mol% of 5-octyloxy-2- (4-decyloxy-phenyl) -pyrimidine 5.3 mol% of 5-octyl-2- (4-dodecyloxy-phenyl) -pyrimidine 7 , 8 mol% of trans-4-pentyl-cyclohexane carboxylic acid
  • phase ranges of a mixture which differed from the above only in that it contains no component according to the invention were measured.
  • This comparison mixture has the following phase ranges
  • the crystallization temperature under the above cooling conditions is -17 ° C.
  • the component according to the invention obviously leads to a lowering of the melting point and the crystallization temperature.
  • a ferroelectric liquid crystalline mixture consisting of six components
  • dopant according to the invention contains 5 mol% (2R, 3R) -3-propyloxiran-2-carboxylic acid - [(octyloxy-pyrimidin-2-yl) - phenyl] ester, at a temperature of 20 ° C a polarization of 24 nCcm - 2 and a switching time of 120 ⁇ s.
  • the dimethyl-substituted stands out
  • the ferroelectric liquid-crystalline mixture with the dopant according to the invention has a significantly shorter switching time than the comparison mixture.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Liquid Crystal Substances (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP91902950A 1990-02-02 1991-01-24 Geminale dimethylalkyl-verbindungen, verfahren zu ihrer herstellung und ihre verwendung in flüssigkristallinen mischungen Withdrawn EP0513069A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4003012A DE4003012A1 (de) 1990-02-02 1990-02-02 Geminale dimethylalkyl-verbindungen, verfahren zu ihrer herstellung und ihre verwendung in fluessigkristallinen mischungen
DE4003012 1990-02-02

Publications (1)

Publication Number Publication Date
EP0513069A1 true EP0513069A1 (de) 1992-11-19

Family

ID=6399235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91902950A Withdrawn EP0513069A1 (de) 1990-02-02 1991-01-24 Geminale dimethylalkyl-verbindungen, verfahren zu ihrer herstellung und ihre verwendung in flüssigkristallinen mischungen

Country Status (10)

Country Link
US (1) US5366657A (ko)
EP (1) EP0513069A1 (ko)
JP (1) JP2995089B2 (ko)
KR (1) KR927003543A (ko)
CA (1) CA2075198A1 (ko)
DE (1) DE4003012A1 (ko)
IE (1) IE910362A1 (ko)
NO (1) NO922978L (ko)
PT (1) PT96647A (ko)
WO (1) WO1991011441A1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478496A (en) * 1987-04-16 1995-12-26 Merck Patent Gesellschaft Mit Beschrankter Haftung Media containing thiazole derivatives and thiadiazole derivatives and having a smectic liquid-crystalline phase
EP0628530B1 (en) * 1992-10-26 1999-03-24 Sumitomo Chemical Company Limited Acetylene derivatives, process for producing the same, liquid crystal composition containing the same as active ingredient, and liquid crystal element made therefrom
CA2412010A1 (en) * 2000-06-13 2001-12-20 Basf Aktiengesellschaft Fungicidal 5-phenyl substituted 2-(cyanoamino) pyrimidines

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57177096A (en) * 1981-04-23 1982-10-30 Nippon Oil Co Ltd Oil composition for refrigerator
JPH0631365B2 (ja) * 1985-12-27 1994-04-27 東燃株式会社 トラクシヨン流体
DE3782531T2 (de) * 1986-04-21 1993-05-06 Ajinomoto Kk Optisch aktive verbindung und fluessigkristalline zusammensetzung.
GB8714537D0 (en) * 1987-06-22 1987-07-29 Ici Plc Pyrazine derivatives
US5085792A (en) * 1987-06-23 1992-02-04 Toa Nenryo Kogyo, K.K. Synthetic traction fluid
JP2691405B2 (ja) * 1987-11-06 1997-12-17 チッソ株式会社 強誘電性液晶組成物
JPH01139571A (ja) * 1987-11-26 1989-06-01 Chisso Corp ２−フエニリル−５−アルカノイルオキシピリミジン
US5034151A (en) * 1988-03-28 1991-07-23 Canon Kabushiki Kaisha Mesomorphic compound, ferroelectric liquid crystal composition containing same and ferroelectric liquid crystal device
GB8812342D0 (en) * 1988-05-25 1988-06-29 Ici America Inc Bicyclic compounds

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9111441A1 *

Also Published As

Publication number Publication date
IE910362A1 (en) 1991-08-28
PT96647A (pt) 1991-10-31
DE4003012A1 (de) 1991-08-08
NO922978D0 (no) 1992-07-28
KR927003543A (ko) 1992-12-18
NO922978L (no) 1992-07-28
US5366657A (en) 1994-11-22
JPH05504349A (ja) 1993-07-08
JP2995089B2 (ja) 1999-12-27
WO1991011441A1 (de) 1991-08-08
CA2075198A1 (en) 1991-08-03

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