| abstract |
The present invention relates to and a kind of there is the luxuriant and rich with fragrance compound of dihydro, liquid-crystal composition and liquid crystal display cells.The present invention provides a kind of liquid crystal compounds and intermediate thereof, it has big negative permittivity anisotropy (Δ ε), and have to the high stability of heat, light etc., high transparency point, suitable refraction guiding (Δ n) and with at least one characteristic such as the excellent intermiscibility of other liquid crystal compounds.A kind of compound, it represents with formula (1).Such as, R 1 And R 2 To be carbon number be 1～12 alkyl, carbon number be 1～12 alkoxyl or carbon number be the thiazolinyl of 2～12；Ring A 1 , ring A 2 And ring A 3 For Isosorbide-5-Nitrae-cyclohexylidene or Isosorbide-5-Nitrae-phenylene；Z 1 、Z 2 And Z 3 For singly-bound or-(CH 2 ) 2 -；X is-CF 2 -or-CHF-；L, m and n are 0 or 1. |