EP0255962A2
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Optically active mesomorphic compound
Assignee: Canon Inc
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Filing: 1987-08-07
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Granted: —
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Expires: 2007-08-07
Abstract
Abstract An optically active mesomorphic compound represented by the formula (III) is obtained through an optically active compound represented by the formula (I) and then through a compound represented by the formula (II), respectively, shown below. <CHEM> In the above formulas, R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent, C* represents an asymmetric carbon atom, k is an integer of from 2 to 5, A is a releasable active group such as hydroxyl, l is 0 or 1, and when l is 1, m is 0, 1 or 2 and n is 0 or 1; R<1> represents an alkyl or alkoxy group having 1 - 18 carbon atoms; <CHEM> and <CHEM> respectively denote <CHEM> p, q and r are respectively 0 or 1 satisfying the relation of p+q+r >/= 1.
Inventors
- 👤 Takashi Iwaki
- 👤 Kenji Shinjo
- 👤 Akio Yoshida
- 👤 Masataka Yamashita
- 👤 Kazuharu Katagiri
- 👤 Chieko Hioki
- 👤 Takeshi Togano
- 👤 Yoko Yamada
- 👤 Masahiro Terada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 17:25
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/26; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/13; C07C43/20; C07C43/205; C07C43/2055; C07C43/23; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/20; C09K19/2007; C09K19/2021; C09K19/30; C09K19/3001; C09K19/3066; C09K19/3068; C09K19/34; C09K19/3441; C09K19/345; C09K19/3458; C09K19/3463
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
50 words
An optically active compound represented by the following formula (I): wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1-18 carbon atoms each capable of having a substituent, C * represents an asymmetric carbon atom, and k is an integer of from 2 to 5.
Claim 2
Dependent Claim
50 words
An optically active compound represented by the following formula (I): wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1-18 carbon atoms each capable of having a substituent, C * represents an asymmetric carbon atom, and k is an integer of from 2 to 5.
Claim 3
Dependent Claim
21 words
A compound according to Claim 1, wherein the substituent for the group R is a halogen atom or an alkoxy group.
Claim 4
Dependent Claim
82 words
An optically active compound represented by the following formula (II) wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent, C* represents an asymmetric carbon atom, k is an integer of from 2 to 5, is 0 or 1, and when I is 1, m is 0, 1 or 2, and n is 0 or 1; and A is a hydroxyl, alkoxyl, acyloxy, tosyloxy or halogen radical.
Claim 5
Dependent Claim
82 words
An optically active compound represented by the following formula (II) wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent, C* represents an asymmetric carbon atom, k is an integer of from 2 to 5, is 0 or 1, and when I is 1, m is 0, 1 or 2, and n is 0 or 1; and A is a hydroxyl, alkoxyl, acyloxy, tosyloxy or halogen radical.
Claim 6
Dependent Claim
21 words
A compound according to Claim 3, wherein the substituent for the group R is a halogen atom or an alkoxy group.
Claim 7
Dependent Claim
105 words
An optically active mesomorphic compound represented by the following formula (III) : wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent, C* represents an asymmetric carbon atom, k is an integer of from 2 to 5, 1 is 0 or 1, and when 1 is 1, m is 0, 1 or 2 and n is 0 or 1; R 1 represents an alkyl or alkoxy group having 1-18 carbon atoms; respectively denote or p, q and r are respectively 0 or 1 satisfying the relation of p+q+r ≧ 1.
Claim 8
Dependent Claim
105 words
An optically active mesomorphic compound represented by the following formula (III) : wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent, C* represents an asymmetric carbon atom, k is an integer of from 2 to 5, 1 is 0 or 1, and when 1 is 1, m is 0, 1 or 2 and n is 0 or 1; R 1 represents an alkyl or alkoxy group having 1-18 carbon atoms; respectively denote or p, q and r are respectively 0 or 1 satisfying the relation of p+q+r ≧ 1.
Claim 9
Dependent Claim
21 words
A compound according to Claim 5, wherein the substituent for the group R is a halogen atom or an alkoxy group.
Claim 10
Dependent Claim
112 words
A liquid crystal composition containing at least one mesomorphic compound represented by the following formula (III) : wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent, C * represents an asymmetric carbon atom, k is an integer of from 2 to 5, I is 0 or 1, and when I is 1, m is 0, 1 or 2 and n is 0 or 1; R 1 represents an alkyl or alkoxy group having 1 - 18 carbon atoms; respectively denote p, q and r are respectively 0 or 1 satisfying the relation of p+q+r ≧ 1.
Claim 11
Dependent Claim
112 words
A liquid crystal composition containing at least one mesomorphic compound represented by the following formula (III) : wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent, C * represents an asymmetric carbon atom, k is an integer of from 2 to 5, I is 0 or 1, and when I is 1, m is 0, 1 or 2 and n is 0 or 1; R 1 represents an alkyl or alkoxy group having 1 - 18 carbon atoms; respectively denote p, q and r are respectively 0 or 1 satisfying the relation of p+q+r ≧ 1.
Claim 12
Dependent Claim
23 words
A composition according to Claim 7, which contains the mesomorphic compound represented by the formula (III) in addition to a ferroelectric liquid crystal.
Claim 13
Dependent Claim
24 words
A composition according to Claim 8, which contains the mesomorphic compound represented by the formula (III) in a proportion of 0.1 - 99 wt.%.
Claim 14
Dependent Claim
25 words
A composition according to Claim 8, which contains the mesomorphic compound represented by the formula (III) in a proportion of 1 - 90 wt. %.
Claim 15
Dependent Claim
24 words
A composition according to Claim 7, which contains the mesomorphic compound represented by the formula (III) in addition to a non-chiral smectic liquid crystal.
Claim 16
Dependent Claim
24 words
A composition according to Claim 11, which contains the mesomorphic compound represented by the formula (III) in a proportion of 0.1 - 99 wt.%.
Claim 17
Dependent Claim
23 words
A composition according to Claim 7, which contains the mesomorphic compound represented by the formula (III) in addition to a nematic liquid crystal.
Claim 18
Dependent Claim
25 words
A composition according to Claim 11, which contains the mesomorphic compound represented by the formula (III) in a proportion of 0.01 - 50 wt. %.
Claim 19
Dependent Claim
127 words
A liquid crystal device comprising: a pair of substrates and a liquid crystal composition disposed therebetween containing at least one compound represented by the following formula (III) : wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 -18 carbon atoms each capable of having a substituent, C * represents an asymmetric carbon atom, k is an integer of from 2 to 5, I is 0 or 1, and when I is 1, m is 0, 1 or 2 and n is 0 or 1; R 1 represents an alkyl or alkoxy group having 1 - 1 carbon atoms; and respectively denote p, q and r are respectively 0 or 1 satisfying the relation of p + q + 1 ≧ 1.
Claim 20
Dependent Claim
127 words
A liquid crystal device comprising: a pair of substrates and a liquid crystal composition disposed therebetween containing at least one compound represented by the following formula (III) : wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 -18 carbon atoms each capable of having a substituent, C * represents an asymmetric carbon atom, k is an integer of from 2 to 5, I is 0 or 1, and when I is 1, m is 0, 1 or 2 and n is 0 or 1; R 1 represents an alkyl or alkoxy group having 1 - 1 carbon atoms; and respectively denote p, q and r are respectively 0 or 1 satisfying the relation of p + q + 1 ≧ 1.
Claim 21
Dependent Claim
115 words
A mesomorphic compound represented by the following formula (IV): wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent; R 2 is an alkoxy, acyl, acyloxy, alkoxycarbonyl or alkoxycarbonyloxy group having 1 - 18 carbon atoms each capable of having a substituent; C * represents an asymmetric carbon atom, and are respectivelv a 1, 4-phenylene or pyrimidine-2,5-di-yl group each capable of having a substituent; b, c and d are respectively 0, 1 or 2; e is 0 or 1; X represents a single bond, or -0-; and Y repre sents a hydrogen atom, halogen atom, alkyl, alkoxy or cyano group.
Claim 22
Dependent Claim
115 words
A mesomorphic compound represented by the following formula (IV): wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent; R 2 is an alkoxy, acyl, acyloxy, alkoxycarbonyl or alkoxycarbonyloxy group having 1 - 18 carbon atoms each capable of having a substituent; C * represents an asymmetric carbon atom, and are respectivelv a 1, 4-phenylene or pyrimidine-2,5-di-yl group each capable of having a substituent; b, c and d are respectively 0, 1 or 2; e is 0 or 1; X represents a single bond, or -0-; and Y repre sents a hydrogen atom, halogen atom, alkyl, alkoxy or cyano group.
Claim 23
Dependent Claim
31 words
A compound according to Claim 16, wherein the substituents for the groups R 1 and R 2 are respectively selected from an alkyl group, a halogen atom and an alkoxy group.
Claim 24
Dependent Claim
28 words
A compound according to Claim 16, wherein the substituents for the groups are respectively selected from a halogen atom, an alkyl group, an alkoxy group and cyano group.
Claim 25
Dependent Claim
119 words
A liquid crystal composition containing at least one mesomorphic compound represented by the following formula (IV): wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent; R 2 is an alkoxy, acyl, acyloxy, alkoxycarbonyl or alkoxycarbonyloxy group having 1 - 18 carbon atoms each capable of having a substituent; C * represents an asymmetric carbon atom; are respectively a 1,4-phenylene or pyrimidine-2,5-di-yl group each capable of having a substituent; b, c and d are respectively 0, 1 or 2; e is 0 or 1; X represents a single bond, or -0-; and Y represents a hydrogen atom, halogen atom, alkyl, alkoxy or cyano group.
Claim 26
Dependent Claim
119 words
A liquid crystal composition containing at least one mesomorphic compound represented by the following formula (IV): wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent; R 2 is an alkoxy, acyl, acyloxy, alkoxycarbonyl or alkoxycarbonyloxy group having 1 - 18 carbon atoms each capable of having a substituent; C * represents an asymmetric carbon atom; are respectively a 1,4-phenylene or pyrimidine-2,5-di-yl group each capable of having a substituent; b, c and d are respectively 0, 1 or 2; e is 0 or 1; X represents a single bond, or -0-; and Y represents a hydrogen atom, halogen atom, alkyl, alkoxy or cyano group.
Claim 27
Dependent Claim
25 words
A liquid crystal composition according to Claim 19, which contains the mesomorphic compound represented by the formula (IV) in addition to a ferroelectric liquid crystal.
Claim 28
Dependent Claim
33 words
A liquid crystal composition according to Claim 20, which contains 1 to 500 wt. parts of the mesomorphic compound represented by the formula (IV) per 100 wt. parts of the ferroelectric liquid crystal.
Claim 29
Dependent Claim
131 words
A liquid crystal device comprising: a pair of substrates and a liquid crystal composition disposed therebetween containing at least one mesomorphic compound represented by the following formula (IV): wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent; R 2 is an alkoxy, acyl, acyloxy, alkoxycarbonyl or alkoxycarbonyloxy group having 1 - 18 carbon atoms each capable of having a substituent; C * represents an asymmetric carbon atom; are respectively a 1,4-phenylene or pyrimidine-2,5-di-yi group each capable of having a substituent; b, c and d are respectively 0, 1 or 2; e is 0 or 1; X represents a single bond, or -0-; and Y represents a hydrogen atom, halogen atom, alkyl, alkoxy or cyano group.
Claim 30
Dependent Claim
131 words
A liquid crystal device comprising: a pair of substrates and a liquid crystal composition disposed therebetween containing at least one mesomorphic compound represented by the following formula (IV): wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 - 18 carbon atoms each capable of having a substituent; R 2 is an alkoxy, acyl, acyloxy, alkoxycarbonyl or alkoxycarbonyloxy group having 1 - 18 carbon atoms each capable of having a substituent; C * represents an asymmetric carbon atom; are respectively a 1,4-phenylene or pyrimidine-2,5-di-yi group each capable of having a substituent; b, c and d are respectively 0, 1 or 2; e is 0 or 1; X represents a single bond, or -0-; and Y represents a hydrogen atom, halogen atom, alkyl, alkoxy or cyano group.
Claim 31
Dependent Claim
13 words
A compound according to Claim 5, which is in a liquid crystal state.
Claim 32
Dependent Claim
12 words
A compound according to Claim 23, which is in a smectic phase.
Claim 33
Dependent Claim
13 words
A compound according to Claim 24, which is in a chiral smectic phase.
References Cited (Backward Citations)
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