Phenolic compound having carbonyl as neighboring group and application thereof
AssigneesJnc Corporation, Jnc Petrochemical Corporation
InventorsMayumi Goto, Yasuyuki Sasada
Life of this patent
Estimating the term…
Abstract
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.
Claims10
A compound represented by formula (1):
- wherein, in formula (1),
- R1 and R2 are independently 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 independently 1,4-cyclohexylene or 1,4-phenylene, at least one of —(CH2)2— constituting 1,4-cyclohexylene may be replaced by —CH═CH—, at least one of
- constituting 1,4-cyclohexylene may be replaced by
- at least one of —CH2— constituting 1,4-cyclohexylene may be replaced by —O— or
- —CO—, and at least one of hydrogen directly bonded with the rings may be replaced by halogen, —CF3, —CF2H or —CH2F;
- Z1 is a single bond, —(CH2)2—, —CH2O—, —OCH2—, —CF2O—, —OCF2—, —COO— or —OCO—;
- Y is fluorine, chlorine, —CF3, —CF2H or —CH2F;
- and
- m, n and p are independently 0, 1 or 2, and
- a sum (m+n) of m and n is 0, 1 or 2.
Dependencies are inferred from the claim text.