GB1373610A - P-alkyl and alkoxy benoic acid p,-cyano phenyl esters and their use in liquid crystals - Google Patents

P-alkyl and alkoxy benoic acid p,-cyano phenyl esters and their use in liquid crystals

Info

Publication number
GB1373610A
GB1373610A GB905273A GB905273A GB1373610A GB 1373610 A GB1373610 A GB 1373610A GB 905273 A GB905273 A GB 905273A GB 905273 A GB905273 A GB 905273A GB 1373610 A GB1373610 A GB 1373610A
Authority
GB
United Kingdom
Prior art keywords
general formula
compound
alkoxy
alkyl
reacting
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.)
Expired
Application number
GB905273A
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche 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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of GB1373610A publication Critical patent/GB1373610A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/58—Preparation of carboxylic acid halides
    • C07C51/60—Preparation of carboxylic acid halides by conversion of carboxylic acids or their anhydrides or esters, lactones, salts into halides with the same carboxylic acid part
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
    • C07C63/04—Monocyclic monocarboxylic acids
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Liquid Crystal Substances (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

1373610 p-Alkyl and alkoxy benzoic acid p<SP>1</SP>- cyanophenyl esters F HOFFMANN-LA ROCHE & CO AG 23 Feb 1973 [23 Feb 1972] 9052/73 Heading C2C Compounds of general formula wherein R represents a straight chain alkyl group containing 4 to 8 carbon atoms or a straight chain alkoxy group containing 5 to 8 carbon atoms are claimed per se. These compounds may be prepared by the following processes: (a) reacting a compound of the general formula wherein X represents a leaving atom or group with p-hydroxybenzonitrile or (b) dehydrating a compound of the general formula at the reflux temperature of the mixture or (c) reacting a compound of the general formula wherein Y represents a halogen atom or an arylsulphonyloxy group, with cuprous or sodium cyanide or (d) dehydrating a compound of the general formula at atmospheric or reduced pressure or (e) diazotizing a compound of the general formula in water at a temperature of 0 to 5‹ C. with the addition of hydrochloric acid and sodium nitrite and reacting the diazonium salt so obtained with cuprous cyanide.
GB905273A 1972-02-23 1973-02-23 P-alkyl and alkoxy benoic acid p,-cyano phenyl esters and their use in liquid crystals Expired GB1373610A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH258672A CH565234A5 (en) 1972-02-23 1972-02-23

Publications (1)

Publication Number Publication Date
GB1373610A true GB1373610A (en) 1974-11-13

Family

ID=4237116

Family Applications (1)

Application Number Title Priority Date Filing Date
GB905273A Expired GB1373610A (en) 1972-02-23 1973-02-23 P-alkyl and alkoxy benoic acid p,-cyano phenyl esters and their use in liquid crystals

Country Status (20)

Country Link
JP (2) JPS5211677B2 (en)
AR (1) AR195823A1 (en)
AT (1) AT335530B (en)
AU (1) AU444106B2 (en)
BE (1) BE795776A (en)
CA (1) CA1013364A (en)
CH (1) CH565234A5 (en)
CS (4) CS177892B2 (en)
DD (2) DD110737A5 (en)
ES (1) ES411901A1 (en)
FR (1) FR2173165B1 (en)
GB (1) GB1373610A (en)
IL (1) IL41362A (en)
IT (1) IT978487B (en)
NL (1) NL152917B (en)
NO (2) NO132477C (en)
SE (2) SE402278B (en)
SU (3) SU520031A3 (en)
TR (1) TR18233A (en)
ZA (1) ZA73331B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4978683A (en) * 1972-12-06 1974-07-29
JPS50111042A (en) * 1974-02-13 1975-09-01
JPS50111043A (en) * 1974-02-15 1975-09-01
JPS5177591A (en) * 1974-12-28 1976-07-05 Dainippon Toryo Kk Nemachitsukuekishososeibutsu
JPS54126775U (en) * 1978-02-22 1979-09-04
DE2937911A1 (en) * 1978-09-19 1980-03-27 Daikin Ind Ltd FLUORINE-CONTAINING PHENYLBENZOATE COMPOUNDS, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE
FR2439765A1 (en) * 1978-10-27 1980-05-23 Thomson Csf MESOMORPHIC ORGANIC COMPOUND HAVING A CHEMICAL FORMULA DERIVED FROM A TETRAFLUOROBENZOIC ACID, AND LIQUID CRYSTAL DEVICE USING SUCH A COMPOUND
JPH0438873Y2 (en) * 1985-08-30 1992-09-10
JPH045986Y2 (en) * 1986-05-12 1992-02-19
US4833794A (en) * 1988-08-10 1989-05-30 Advance Systems, Inc. Dryer apparatus for floating a running web and having baffle means for spent return air

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2024269A1 (en) * 1970-05-19 1971-12-02 Merck Patent Gmbh Nematic mixtures - of low melting point, used in electronics

Also Published As

Publication number Publication date
DE2306739B2 (en) 1976-09-16
CA1013364A (en) 1977-07-05
NL7302276A (en) 1973-08-27
DD108525A5 (en) 1974-09-20
AT335530B (en) 1977-03-10
SE7500978L (en) 1975-01-29
IL41362A (en) 1976-02-29
BE795776A (en) 1973-08-22
IT978487B (en) 1974-09-20
SU515440A3 (en) 1976-05-25
CS177893B2 (en) 1977-08-31
NO139052B (en) 1978-09-18
IL41362A0 (en) 1973-03-30
DD110737A5 (en) 1975-01-05
DE2306739A1 (en) 1973-08-30
CS177892B2 (en) 1977-08-31
ATA155373A (en) 1976-07-15
ES411901A1 (en) 1976-04-16
JPS4896560A (en) 1973-12-10
ZA73331B (en) 1973-10-31
SU520031A3 (en) 1976-06-30
CS177856B2 (en) 1977-08-31
SU511849A3 (en) 1976-04-25
TR18233A (en) 1976-11-05
NO132477B (en) 1975-08-11
JPS522902B2 (en) 1977-01-25
FR2173165A1 (en) 1973-10-05
JPS514137A (en) 1976-01-14
AU444106B2 (en) 1974-01-17
AR195823A1 (en) 1973-11-09
NO139052C (en) 1978-12-27
CH565234A5 (en) 1975-08-15
AU5122973A (en) 1974-01-17
CS177894B2 (en) 1977-08-31
JPS5211677B2 (en) 1977-04-01
NL152917B (en) 1977-04-15
FR2173165B1 (en) 1976-09-10
NO132477C (en) 1975-11-19
SE402278B (en) 1978-06-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SPA Amended specification published
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19930222