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US 7,662,959 B2Granted
Quaternary trifluoromethylcyclohexane derivatives for liquid crystals
AssigneeAir Products and Chemicals, Inc.
InventorsGauri Sankar Lal, Michael Ulman, David Allen Roberts, Wade Hampton Bailey, William Franklin Burgoyne
Life of this patent
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Abstract
A compound having the structure: w-A-x-CY—Z(CF3), where CY is cyclohexane or substituted cyclohexane, exemplified by 4-trifluoromethyl-4-methylcarboxy-4′-propyl-1,1′-(bi)cyclohexane.
Claims6
A compound having the structure:
- wherein;
- w is selected from the group consisting of:
- R, OR, COOR, COR, OOCR, OOCOR, O(CH2)nOR, CH=CHCOOR, CR═CR—COOR, CN, H, I, NH2, NHR, NR2, SR, Br, Cl, F, NO2, N═C═O, N═C═S, CF3, NHCOR, OCF3 and mixtures thereof;
- wherein R is straight or branched chain alkyl with up to 12 C atoms;
- A is selected from the group consisting of:
- aryl, biphenyl, polyphenyl, cyclohexyl, cyclohexenyl, dioxolane, dioxane, bridged bicyclic, pyridine, pyrimidine, pyrazine, pyridazine, tetrazine and mixtures thereof;
- x is selected from the group consisting of:
- a single bond, CH═NR, CH═CHR′, N═N, COO, COS, CONH, (CH2)n, N═C═N, O, CH2O, (CH2)nNH, NH, N+(O−)═N,N═CH—CH═N, COO(CH2)nOOC, (CH2)nCOO, ethyne, CH═N+(O−), O(CH2)nO and mixtures thereof;
- wherein R or R′ is an alkyl or an aryl with up to 12 carbons;
- and n=1 to 5;
- and,
- Z is selected from the group consisting of:
- COOR (wherein R=aryl, straight, branched or cycloaliphatic with or without unsaturation);
- lactone of 4-6 carbon atoms;
- COH;
- CH2OH;
- CH═CRR′;
- (wherein R or R′ is an alkyl or an aryl with up to 12 carbons);
- and mixtures thereof.
16 more elements
A compound having the structure:
- wherein;
- w is selected from the group consisting of:
- and mixtures thereof;
- A is selected from the group consisting of:
- and mixtures thereof;
- x is selected from the group consisting of:
- and mixtures thereof;
- wherein n=1 to 5;
- and,
- Z is selected from the group consisting of:
- COOR (wherein R=aryl, straight, branched or cycloaliphatic with or without unsaturation);
- lactone of 4-6 carbon atoms;
- COH;
- CH2OH;
- CH═CRR′ (wherein R or R′ is an alkyl or an aryl with up to 12 carbons);
- and
- mixtures thereof.
14 more elements
A compound comprising:
- 4-trifluoromethyl-4-methylcarboxy-4′-propyl-1,1′(bi)cyclohexane.
Dependencies are inferred from the claim text.