Patent ID: 7951433

Claim:
A compound, which is represented by any one of formulas (1-1) to (1-2), and (1-4): wherein R 1 is alkyl having 1 to 15 carbons, alkenyl having 2 to 15 carbons, alkoxy having 1 to 15 carbons, or alkenyloxy having 2 to 15 carbons; ring A 1 , ring A 2 , ring A 3 , ring A 4 , ring A 5 , and ring A 6 are each independently 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl, 1,4-phenylene, or 1,4-phenylene in which arbitrary hydrogen is replaced by fluorine, and in each formula, at least one of ring A 1 , ring A 2 , ring A 3 , ring A 4 , ring A 5 , and ring A 6 is 1,4-cyclohexylene or 1,3-dioxane-2,5-diyl; Z 1 , Z 2 , Z 3 , Z 4 , Z 5 , and Z 6 are each independently a single bond, —CH 2 CH 2 —, —CH═CH—, —C≡C—, —COO—, —CF 2 O—, —CH 2 O—, or —OCH 2 —; L 1 , L 2 , L 3 , and L 4 are each independently hydrogen or fluorine; and X 1 is fluorine, chlorine, —C≡N, —CF 3 , —CHF 2 , —CH 2 F, —OCF 3 , —OCHF 2 , or —OCH 2 F.