| abstract |
NEW MATERIAL:The compound of formula I (R is 2W12C straight-chain alkyl or alkoxy; the ring A is benzene ring or cyclohexane ring). n USE: A liquid crystal composition. Useful as an electrical displaying material, exhibiting liquid crystal phase over a wide temperature range, and colorless. n PREPARATION: The compound of formula I can be produced by reacting the compound of formula II with a halogenation agent such as thionyl chloride, phosphorus trichloride, phosphorus dichloride, etc., and reacting the resultant acid chloride with the compound of formula III in an inert solvent such as ethyl ether. n COPYRIGHT: (C)1986,JPO&Japio |