FR2234261A1 - Alkyl and alkoxy tolanes for liquid crystals - colourless stable cpds obtained from corresponding diaryl haloethylene cpds - Google Patents

Alkyl and alkoxy tolanes for liquid crystals - colourless stable cpds obtained from corresponding diaryl haloethylene cpds

Info

Publication number
FR2234261A1
FR2234261A1 FR7322841A FR7322841A FR2234261A1 FR 2234261 A1 FR2234261 A1 FR 2234261A1 FR 7322841 A FR7322841 A FR 7322841A FR 7322841 A FR7322841 A FR 7322841A FR 2234261 A1 FR2234261 A1 FR 2234261A1
Authority
FR
Grant status
Application
Patent type
Prior art keywords
cpds
alkoxy
alkyl
tolanes
colourless
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.)
Granted
Application number
FR7322841A
Other versions
FR2234261B1 (en )
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.)
Agence National de Valorisation de la Recherche ANVAR
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
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

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; MISCELLANEOUS COMPOSITIONS; MISCELLANEOUS APPLICATIONS OF MATERIALS
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/14Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain
    • C09K19/18Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain the chain containing carbon-to-carbon triple bonds, e.g. tolans

Abstract

Tolanes of formula:- (whre one of R and R1 is alkyl or alkoxy and the other is alkoxy. X and X1 are halogen, methyl, CF3 and one of X or X1 may also be H. Pref. halogen is Cl or F and R and R1 are pref. 1-16C alkyl or alkoxy) and mixtures of cpds. of formula (I) particularly eutectic mixtures are used for liquid crystals in thermometry television etc. The cpds. are colourless and stable.
FR7322841A 1973-06-22 1973-06-22 Expired FR2234261B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7322841A FR2234261B1 (en) 1973-06-22 1973-06-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7322841A FR2234261B1 (en) 1973-06-22 1973-06-22

Publications (2)

Publication Number Publication Date
FR2234261A1 true true FR2234261A1 (en) 1975-01-17
FR2234261B1 FR2234261B1 (en) 1976-04-30

Family

ID=9121405

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7322841A Expired FR2234261B1 (en) 1973-06-22 1973-06-22

Country Status (1)

Country Link
FR (1) FR2234261B1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462997A (en) * 1981-08-28 1984-07-31 Basf Aktiengesellschaft 3-Fluorophenyl (di)thiophosphates, and their use for controlling pests
JPS61197533A (en) * 1985-02-26 1986-09-01 Dainippon Ink & Chem Inc Halotolan derivative
WO1988007514A1 (en) * 1987-04-03 1988-10-06 MERCK Patent Gesellschaft mit beschränkter Haftung Tolanes
US4778620A (en) * 1986-08-04 1988-10-18 Chisso Corporation Tolan derivative and a liquid crystal mixture containing the same
US4788363A (en) * 1986-07-17 1988-11-29 Dainippon Ink And Chemicals, Inc. Nematic methyltolans
US4814516A (en) * 1986-06-17 1989-03-21 Dainippon Ink & Chemicals, Inc. Novel optically active tolan derivatives
EP0409634A2 (en) * 1989-07-20 1991-01-23 Sanyo Chemical Industries Ltd. Liquid crystal compounds and optically active compounds
DE4105742C2 (en) * 1991-02-23 2001-08-09 Merck Patent Gmbh 2.6 Difluortolane and their use as components of liquid crystal media
US7264749B2 (en) 2002-04-29 2007-09-04 Basf Aktiengesellschaft Alkyne compounds
DE4143657B4 (en) * 1991-02-23 2007-11-22 Merck Patent Gmbh 2,6-Di:fluoro-tolan derivs. - useful as components of liq. crystal media for electro=optical displays

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462997A (en) * 1981-08-28 1984-07-31 Basf Aktiengesellschaft 3-Fluorophenyl (di)thiophosphates, and their use for controlling pests
JPS61197533A (en) * 1985-02-26 1986-09-01 Dainippon Ink & Chem Inc Halotolan derivative
JPH0247973B2 (en) * 1985-02-26 1990-10-23 Dainippon Ink & Chemicals
US4814516A (en) * 1986-06-17 1989-03-21 Dainippon Ink & Chemicals, Inc. Novel optically active tolan derivatives
US4788363A (en) * 1986-07-17 1988-11-29 Dainippon Ink And Chemicals, Inc. Nematic methyltolans
US4778620A (en) * 1986-08-04 1988-10-18 Chisso Corporation Tolan derivative and a liquid crystal mixture containing the same
USRE34264E (en) * 1986-08-04 1993-05-25 Chisso Corporation Tolan derivative and a liquid crystal mixture containing the same
WO1988007514A1 (en) * 1987-04-03 1988-10-06 MERCK Patent Gesellschaft mit beschränkter Haftung Tolanes
EP0409634A2 (en) * 1989-07-20 1991-01-23 Sanyo Chemical Industries Ltd. Liquid crystal compounds and optically active compounds
EP0409634A3 (en) * 1989-07-20 1991-11-27 Sanyo Chemical Industries Ltd. Liquid crystal compounds and optically active compounds
DE4105742C2 (en) * 1991-02-23 2001-08-09 Merck Patent Gmbh 2.6 Difluortolane and their use as components of liquid crystal media
DE4143657B4 (en) * 1991-02-23 2007-11-22 Merck Patent Gmbh 2,6-Di:fluoro-tolan derivs. - useful as components of liq. crystal media for electro=optical displays
US7264749B2 (en) 2002-04-29 2007-09-04 Basf Aktiengesellschaft Alkyne compounds

Also Published As

Publication number Publication date Type
FR2234261B1 (en) 1976-04-30 grant

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Legal Events

Date Code Title Description
ST Notification of lapse