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US4734522A
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Carbocyclic six-membered ring compounds
Assignee: Merck Patent GmbH
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Filing: 1986-01-07
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Granted: 1988-03-29
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Expires: 2006-01-07
Abstract
Abstract Six-membered ring compounds of the formula I ##STR1## wherein A is a benzene or cyclohexane ring, X 1 to X 6 independently of one another in each case are H, --OR, --COOR, --SR, --SOR, --SO 2 R or, if A is a cyclohexane ring, also --O--COR, and R is in each case an alkyl group which has up to 15 C atoms and in which one or two CH 2 groups can be replaced by O atoms, at least three of the substituents X 1 to X 6 being other than H, can be used as constituents of discotic liquid-crystal phases for liquid-crystal display elements.
Inventors
- 👤 Klaus Praefcke
- 👤 Bernd Kohne
- 👤 Wadi Poules
- 👤 Rudolf Eidenschink
- 👤 Bernhard Scheuble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:40
CPC Classifications
C; C07; C07C; C07C317/00; C07C43/00; C07C43/02; C07C43/18; C07C43/184; C07C43/20; C07C43/205; C07C43/2055; C09; C09K; C09K19/00; C09K19/04; C09K19/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
91 words
A compound of the formula all-trans-Cy(O--COR) 6 , Cy(OR) 6 , Ph(SO 2 R) 6 , Cy(SO 2 R) 6 , Ph(SOR) 6 , Cy(SOR) 6 , Cy(SR) 6 or cis-1,3,5-Cy(O--COR) 3 , wherein Cy 6 is cyclohexane-1,2,3,4,5,6-hexayl, Cy 3 is cyclohexane-1,3,5-triyl Ph is phenyl and R is in each case alkyl of 3 to 15 C-atoms or alkyl of 3-15 C-atoms wherein one or two CH 2 groups are replaced by 0 atoms, and opposite substituents in cyclohexane compounds are in the equatorial and trans-space positions relative to one another.
Claim 2
Dependent Claim
91 words
A compound of the formula all-trans-Cy(O--COR) 6 , Cy(OR) 6 , Ph(SO 2 R) 6 , Cy(SO 2 R) 6 , Ph(SOR) 6 , Cy(SOR) 6 , Cy(SR) 6 or cis-1,3,5-Cy(O--COR) 3 , wherein Cy 6 is cyclohexane-1,2,3,4,5,6-hexayl, Cy 3 is cyclohexane-1,3,5-triyl Ph is phenyl and R is in each case alkyl of 3 to 15 C-atoms or alkyl of 3-15 C-atoms wherein one or two CH 2 groups are replaced by 0 atoms, and opposite substituents in cyclohexane compounds are in the equatorial and trans-space positions relative to one another.
Claim 3
Dependent Claim
11 words
Hexaoctanoylscyllo-inositol, hexakis-(nonyl-sulfonyl)-benzene, hexakis-(undecylsulfonyl)-benzene, or hexakis-(tridecylsulfonyl)-benzene, each a compound of claim 1.
Claim 4
Dependent Claim
11 words
A compound of claim 1 of the formula all-trans-Cy(O--COR) 6 .
Claim 5
Dependent Claim
11 words
A compound of claim 1 of the formula Cy(OR) 6 .
Claim 6
Dependent Claim
13 words
A compound of claim 1 of the formula Ph(SO 2 R) 6 .
Claim 7
Dependent Claim
13 words
A compound of claim 1 of the formula Cy(SO 2 R) 6 .
Claim 8
Dependent Claim
11 words
A compound of claim 1 of the formula Ph(SOR) 6 .
Claim 9
Dependent Claim
11 words
A compound of claim 1 of the formula Cy(SOR) 6 .
Claim 10
Dependent Claim
11 words
A compound of claim 1 of the formula Cy(SR) 6 .
Claim 11
Dependent Claim
11 words
A compound of claim 1 of the formula cis-1,3,5-Cy(O--COR) 3 .
Claim 12
Dependent Claim
12 words
A compound of claim 1, wherein R is alkyl of 3-13 C-atoms.
Claim 13
Dependent Claim
11 words
A compound of claim 1, wherein R is C 3-15 -alkyl.
Claim 14
Dependent Claim
25 words
A compound of claim 1, wherein R is alkyl of 3-15 C-atoms wherein one or two CH 2 groups are replaced by oxa 0 atoms.
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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) | 1991-03-29 | 1991-09-28 | 1992-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-29 | 1995-09-28 | 1996-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-29 | 1999-09-28 | 2000-03-29 | $7700.00 | Window Closed / Lapsed |