JPS577457A - Ester - Google Patents

Ester

Info

Publication number
JPS577457A
JPS577457A JP8124880A JP8124880A JPS577457A JP S577457 A JPS577457 A JP S577457A JP 8124880 A JP8124880 A JP 8124880A JP 8124880 A JP8124880 A JP 8124880A JP S577457 A JPS577457 A JP S577457A
Authority
JP
Japan
Prior art keywords
compound
formula
liquid crystal
react
give
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
JP8124880A
Other languages
Japanese (ja)
Other versions
JPS6125702B2 (en
Inventor
Sadao Kanbe
Katsumori Takei
Yoshitake Shionozaki
Yoshihiro Ono
Motoyuki Toki
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP8124880A priority Critical patent/JPS577457A/en
Publication of JPS577457A publication Critical patent/JPS577457A/en
Publication of JPS6125702B2 publication Critical patent/JPS6125702B2/ja
Granted legal-status Critical Current

Links

Abstract

NEW MATERIAL:Liquid crstal esters of formula I (R is 5W9C straight chain alkyl).
EXAMPLE: Compounds of formula II.
USE: Compounds used to improve the characteristics of liquid crystals: since they have a wide liquid crystal temperature range, the liquid crystal compositions including the same is widened in the liquid crystal temperature range. They have large dielectric anisotropy and the liquid crystal with a negative dielectric anisotropy is changed to positive one by adding a small amount of the compound.
PREPARATION: A compound of formula III is obtained from p-hydroxybenzoic acid and R-Br. The product is made to react with thionyl chloride to give a compound of formula IV. The compound is dissolved in acetone and made to react with a sodium hydroxide solution containing p-hydroxybenzoic acid to give a compound of formula V. The reaction of the compound of formula V with thionyl chloride gives a compound of formula VI, which is made to react with a compound of formula VII to give the compound of formula I.
COPYRIGHT: (C)1982,JPO&Japio
JP8124880A 1980-06-16 1980-06-16 Ester Granted JPS577457A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8124880A JPS577457A (en) 1980-06-16 1980-06-16 Ester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8124880A JPS577457A (en) 1980-06-16 1980-06-16 Ester

Publications (2)

Publication Number Publication Date
JPS577457A true JPS577457A (en) 1982-01-14
JPS6125702B2 JPS6125702B2 (en) 1986-06-17

Family

ID=13741089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8124880A Granted JPS577457A (en) 1980-06-16 1980-06-16 Ester

Country Status (1)

Country Link
JP (1) JPS577457A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550981A (en) * 1982-09-30 1985-11-05 Hoffmann-La Roche Inc. Liquid crystalline esters and mixtures
US4559161A (en) * 1982-02-18 1985-12-17 Kabushiki Kaisha Suwa Seikosha Liquid crystal composition
US4609256A (en) * 1981-07-24 1986-09-02 Seiko Epson Corporation Liquid crystal optical device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01146801U (en) * 1989-02-18 1989-10-11

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609256A (en) * 1981-07-24 1986-09-02 Seiko Epson Corporation Liquid crystal optical device
US4559161A (en) * 1982-02-18 1985-12-17 Kabushiki Kaisha Suwa Seikosha Liquid crystal composition
US4550981A (en) * 1982-09-30 1985-11-05 Hoffmann-La Roche Inc. Liquid crystalline esters and mixtures
US4708441A (en) * 1982-09-30 1987-11-24 Hoffman-La Roche Inc. Esters

Also Published As

Publication number Publication date
JPS6125702B2 (en) 1986-06-17

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