98121-48-3Relevant academic research and scientific papers
Phenolic compound having carbonyl as neighboring group and application thereof
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Page/Page column 52; 53, (2017/01/05)
To provide a liquid crystal compound having a large negative value of dielectric anisotropy (Δ∈). A compound is represented by formula (1): wherein, in formula (1), R1 and R2 are hydrogen, halogen or alkyl having 1 to 10 carbons, and in the alkyl, at least one of —CH2— may be replaced by —O—, at least one of —(CH2)2— may be replaced by —CH═CH—, and at least one of hydrogen may be replaced by halogen; ring A1 and ring A2 are 1,4-cyclohexylene or 1,4-phenylene; Z1 is a single bond, —(CH2)2—, —CH2O—, —OCH2—, —CF2O—, —OCF2—, —COO—, or —OCO—; Y is halogen, —CF3, —CF2H or —CH2F; and m, n and p are 0, 1 or 2, and a sum (m+n) of m and n is 0, 1 or 2.
BENZENE DERIVATIVE, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY
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Page/Page column 58-59, (2010/11/25)
Known compounds showing negative dielectric anisotropy show negative dielectric anisotropy of relatively large values but are not satisfactory in view of the balance of the physical property as the liquid crystal material such as having low clearing point and showing high viscosity. The present invention intends to provide a liquid crystalline compound showing a negative dielectric anisotropy, as well as having excellent balance for physical property such as having relatively high clearing point, relatively low viscosity, appropriate optical anisotropy, and excellent compatibility with other liquid crystalline compounds. The compound of the invention is a compound represented by Formula (1) or Formula (2). In the formulae, Ra and Rb each independently is hydrogen or alkyl of 1 to 20 carbon atoms, A 1 , A 11 , A 12 , A 2 , A 21 and A 22 each independently is a cyclic group, Y, W, Z 11 , Z 12 , Z 2 , Z 21 and Z 22 each independently is a bonding group, and j, k, m, n, p and q each independently is 0 or 1 and the sum of them is 1, 2 or 3;
