| 主权项 |
1. A compound represented by general formula (1), wherein in the formula (1), R represents an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, one —CH2— or two or more unadjacent —CH2— present in the group is/are optionally substituted by —O—, —S—, —COO—, —OCO—, or —CO—, and a hydrogen atom present in the group is optionally substituted by a fluorine atom, A1, A2, A3, and A4 each independently represent a group selected from the group consisting of (a) a 1,4-cyclohexylene group wherein one —CH2— or two or more unadjacent —CH2— present in the group is/are optionally substituted by —O— or —S—; (b) a 1,4-phenylene group wherein one —CH═ or two or more unadjacent —CH═ present in the group is/are optionally substituted by —N═, and a hydrogen atom present in the group is optionally substituted by a fluorine atom; and (c) a naphthalene-2,6-diyl group wherein a hydrogen atom present in the group is/are optionally substituted by a fluorine atom, Z1, Z2, Z3, and Z4 each independently represent —CH2O—, —OCH2—, —CF2O—, —OCF2—, —CH2CH2—, —CF2CF2—, —CH═CH—, —CF═CF—, —C≡C—, or a single bond, A5 represents wherein in the formulae, W represents a fluorine atom, a chlorine atom, a cyano group, —CF3, —OCH2F, —OCHF2, or —OCF3, and Y1, Y2, Y3, Y4, and Y5 each independently represent a fluorine atom, a chlorine atom, or a hydrogen atom, m, n, p, and r each independently represent 0 or 1, and m+n+p+r is 0, 1, 2, or 3. |
