US4623477A
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Ester compounds having a pyrimidine ring
Assignee: JNC Corp
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Filing: 1984-09-27
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Granted: 1986-11-18
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Expires: 2004-09-27
Abstract
Abstract Ester compounds having a pyrimidine ring, using as their raw material, substituted pyrimidinols in place of expensive p-substituted phenols, and also useful as a material for liquid crystal display elements are provided which esters are expressed by the general formula ##STR1## wherein R represents an alkyl or alkoxy group of 1 to 10 carbon atoms; X represents a halogen atom of F, Cl or Br, cyano group or an alkyl or alkoxy group of 1 to 10 carbon atoms; ##STR2## represents ##STR3## and n is 0 or 1.
Inventors
- 👤 Tetsuya Ogawa
- 👤 Yasuyuki Goto
- 👤 Kisei Kitano
- 👤 Naoyuki Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:46
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/34; C09K19/3441; C09K19/345; C09K19/3458; C09K19/3469; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/32; C07D239/34
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
65 words
Ester compounds having a pyrimidine ring expressed by the general formula ##STR25## wherein R represents an alkyl or alkoxy group of 1 to 10 carbon atoms; X represents a halogen atom of F, Cl or Br, a cyano group or an alkyl or alkoxy group of 1 to 10 carbon atoms; ##STR26## represent ##STR27## n is 0 or 1; and when n is 1, ##STR28##
Claim 2
Dependent Claim
65 words
Ester compounds having a pyrimidine ring expressed by the general formula ##STR25## wherein R represents an alkyl or alkoxy group of 1 to 10 carbon atoms; X represents a halogen atom of F, Cl or Br, a cyano group or an alkyl or alkoxy group of 1 to 10 carbon atoms; ##STR26## represent ##STR27## n is 0 or 1; and when n is 1, ##STR28##
Claim 3
Dependent Claim
64 words
5-Substituted-pyrimidin-2-yl substituted carboxylates expressed by the general formula ##STR29## wherein R represents an alkyl or alkoxy group of 1 to 10 carbon atoms; X represents a halogen atom of F, Cl or Br, a cyano group or an alkyl or alkoxy group of 1 to 10 carbon atoms and ##STR30## represents ##STR31## and when X is a cyano group or a halogen atom, ##STR32##
Claim 4
Dependent Claim
64 words
5-Substituted-pyrimidin-2-yl substituted carboxylates expressed by the general formula ##STR29## wherein R represents an alkyl or alkoxy group of 1 to 10 carbon atoms; X represents a halogen atom of F, Cl or Br, a cyano group or an alkyl or alkoxy group of 1 to 10 carbon atoms and ##STR30## represents ##STR31## and when X is a cyano group or a halogen atom, ##STR32##
Claim 5
Dependent Claim
63 words
5-Substituted-pyrimidin-2-yl substituted carboxylates expressed by the general formula ##STR33## wherein R represents an alkyl or alkoxy group of 1 to 10 carbon atoms; X represents a halogen atom of F, Cl or Br, a cyano group or an alkyl or alkoxy group of 1 to 10 carbon atoms; ##STR34## represent ##STR35## and when X is a cyano group or a halogen atom ##STR36##
Claim 6
Dependent Claim
63 words
5-Substituted-pyrimidin-2-yl substituted carboxylates expressed by the general formula ##STR33## wherein R represents an alkyl or alkoxy group of 1 to 10 carbon atoms; X represents a halogen atom of F, Cl or Br, a cyano group or an alkyl or alkoxy group of 1 to 10 carbon atoms; ##STR34## represent ##STR35## and when X is a cyano group or a halogen atom ##STR36##
Claim 7
Dependent Claim
105 words
A liquid crystal composition comprising at least one first substance having liquid crystal properties and at least one second substance comprising an ester compound having a pyrimidine ring expressed by the general formula ##STR37## wherein R represents an alkyl or alkoxy group of 1 to 10 carbon atoms; X represents a halogen atom of F, Cl or Br, a cyano group or an alkyl or alkoxy group of 1 to 10 carbon atoms; ##STR38## represent ##STR39## n is 0 or 1, and when n is 1, ##STR40## said at least one second substance is present in an amount effective to enhance said liquid crystal properties.
Claim 8
Dependent Claim
105 words
A liquid crystal composition comprising at least one first substance having liquid crystal properties and at least one second substance comprising an ester compound having a pyrimidine ring expressed by the general formula ##STR37## wherein R represents an alkyl or alkoxy group of 1 to 10 carbon atoms; X represents a halogen atom of F, Cl or Br, a cyano group or an alkyl or alkoxy group of 1 to 10 carbon atoms; ##STR38## represent ##STR39## n is 0 or 1, and when n is 1, ##STR40## said at least one second substance is present in an amount effective to enhance said liquid crystal properties.
Claim 9
Dependent Claim
25 words
5-Substituted-pyrimidin-2-yl 4'-substituted-benzoates expressed by the general formula ##STR41## wherein R and X each represent an alkyl or alkoxy group of 1 to 10 carbon atoms.
Claim 10
Dependent Claim
25 words
5-Substituted-pyrimidin-2-yl 4'-substituted-benzoates expressed by the general formula ##STR41## wherein R and X each represent an alkyl or alkoxy group of 1 to 10 carbon atoms.
Claim 11
Dependent Claim
16 words
An ester compound according to claim 1 wherein R is a propyl, pentyl or hexyl group.
Claim 12
Dependent Claim
19 words
An ester compound according to claim 1 wherein X is an ethyl, butyl, hexyl, methoxyl, pentoxyl, or hexoxyl group.
Claim 13
Dependent Claim
17 words
A pyrimidinyl substituted carboxylate according to claim 2 wherein R is a propyl, pentyl or hexyl group.
Claim 14
Dependent Claim
20 words
A pyrimidinyl substituted carboxylate according to claim 2 wherein X is an ethyl, butyl, hexyl, methoxyl, pentoxyl, or hexoxyl group.
Claim 15
Dependent Claim
11 words
A pyrimidinyl substituted carboxylate according to claim 2 comprising 5-hexylpyrimidin-2-yl p-hexoxybenzoate.
Claim 16
Dependent Claim
11 words
A pyrimidinyl substituted carboxylate according to claim 2 comprising 5-hexylpyrimidin-2-yl p-methoxybenzoate.
Claim 17
Dependent Claim
11 words
A pyrimidinyl substituted carboxylate according to claim 2 comprising 5-pentylpyrimidin-2-yl p-methoxybenzoate.
Claim 18
Dependent Claim
11 words
A pyrimidinyl substituted carboxylate according to claim 2 comprising 5-hexylpyrimidin-2-yl p-ethylbenzoate.
Claim 19
Dependent Claim
11 words
A pyrimidinyl substituted carboxylate according to claim 2 comprising 5-propylpyrimidin-2-yl p-ethylbenzoate.
Claim 20
Dependent Claim
11 words
A pyrimidinyl substituted carboxylate according to claim 2 comprising 5-hexylpyrimidin-2-yl trans-4-pentoxycyclohexanecarboxylate.
Claim 21
Dependent Claim
11 words
A pyrimidinyl substituted carboxylate according to claim 2 comprising 5-hexylpyrimidin-2-yl trans-4-butylcyclohexanecarboxylate.
Claim 22
Dependent Claim
11 words
A pyrimidinyl substituted carboxylate according to claim 2 comprising 5-hexylpyrimidin-2-yl p-fluorobenzoate.
Claim 23
Dependent Claim
11 words
A pyrimidinyl substituted carboxylate according to claim 2 comprising 5-pentylpyrimidin-2-yl p-cyanobenzoate.
Claim 24
Dependent Claim
17 words
A pyrimidinyl substituted carboxylate according to claim 3 wherein R is a propyl, pentyl or hexyl group.
Claim 25
Dependent Claim
20 words
A pyrimidinyl substituted carboxylate according to claim 3 wherein X is an ethyl, butyl, hexyl, methoxyl, pentoxyl, or hexoxyl group.
Claim 26
Dependent Claim
22 words
A pyrimidinyl substituted benzoate according to claim 5 wherein R is a pentyl or hexyl group and X is a hexyl group.
Claim 27
Dependent Claim
11 words
A pyrimidinyl substituted benzoate according to claim 5 comprising 5-hexylpyrimidin-2-yl p-(trans-4-hexylcyclohexylcarbonyloxy)benzoate.
Claim 28
Dependent Claim
11 words
A pyrimidinyl substituted benzoate according to claim 5 comprising 5-pentylpyrimidin-2-yl p-(trans-4-hexylcyclohexylcarbonyloxy)benzoate.
Claim 29
Dependent Claim
17 words
A liquid crystal composition according to claim 4 wherein R is a propyl, pentyl or hexyl group.
Claim 30
Dependent Claim
20 words
A liquid crystal composition according to claim 4 wherein X is an ethyl, butyl, hexyl, methoxyl, pentoxyl, or hexoxyl group.
Claim 31
Dependent Claim
37 words
A liquid crystal composition according to claim 4, comprising, by weight, 5 percent of 5-hexylpyrimidin-2-yl p-(trans-4-hexylcyclohexylcarbonyloxy)benzoate and 95 percent of a liquid crystal mixture comprising, by weight, 30 percent trans-4-propyl(4-cyanophenyl)cyclohexane, 40 percent trans-4-pentyl(4-cyanophenyl)cyclohexane, and 30 percent trans-4-heptyl-(4-cyanophenyl)cyclohexane.
Claim 32
Dependent Claim
36 words
A liquid crystal composition according to claim 4 comprising, by weight, 5 percent of 5-pentylpyrimidin-2-yl p-(trans-4-hexylcyclohexylcarbonyloxy)benzoate and 95 percent of liquid crystal mixture comprising, by weight, 30 percent trans-4-propyl(4-cyanophenyl)cyclohexane, 40 percent trans-4-pentyl(4-cyanophenyl)cyclohexane, and 30 percent trans-4-heptyl(4-cyanophenyl)cyclohexane.
Claim 33
Dependent Claim
26 words
The liquid crystal composition according to claim 4 wherein when n is 0 and X is a cyano group or a halogen atom, ##STR42## is phenylene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |