| abstract |
(57) Abstract: A novel phenylacetylene compound having a large refractive index anisotropy, being easily mixed with other liquid crystals, and having more advantageous light stability, and a compound useful for producing the same. , A method for producing the same, a liquid crystal composition and a liquid crystal element using the same. A phenylacetylene compound represented by the formula (1), an intermediate thereof, a production method thereof, a liquid crystal composition containing the same, and a liquid crystal device using the same. Embedded image (A 1 to A 12 : H, F, etc., one is an F-substituted alkyl group or alkoxy group, R 1 , R 2 : H, F, CN, SF 5, etc.) |