| 主权项 |
1. A compound represented by general formula (1)(where R represents an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms and one —CH2— or two or more non-adjacent —CH2— in the group may each be substituted with —O—, —S—, —COO—, —OCO—, or —CO—,
A1, A2, A3, A4, and A5 each independently represent a group selected from the group consisting of(a) a 1,4-cyclohexylene group (one —CH2— or two or more non-adjacent —CH2— in the group may each be substituted with —O— or —S—),(b) a 1,4-phenylene group (one —CH═ or two or more non-adjacent —CH═ in the group may each be substituted with —N═ and a hydrogen atom in the group may be substituted with a fluorine atom), and(c) a naphthalene-2,6-diyl group (a hydrogen atom in the group may be substituted with a fluorine atom),
at least one group selected from A1, A2, and A3 is a group represented by(where X represents an oxygen atom),
Z1, Z2, Z3, Z4, and Z5 each independently represent —CH2O—, —OCH2—, —CF2O—, —OCF2—, —CH2CH2—, —CF2CF2—, —CH═CH—, —CF═CF—, —C—C—, or a single bond, A6 represents(where W represents a fluorine atom, a chlorine atom, a cyano group, —CF3, —OCH2F, —OCHF2, or —OCF3, and Y1, Y3, Y4, and Y5 each independently represent a fluorine atom, a chlorine atom, or a hydrogen atom), and
m, n, p, r, and s each independently represent 0 or 1, at least one selected from m, n, and p represents 1, m+n+p+r+s equals 1, 2, or 3, and at least one group selected from A1, A2, and A3 corresponding to m, n, and p representing 1 is(where X represents an oxygen atom)). |
