PURPOSE: To provide a novel compound inducing large spontaneous polarization, excellent in high speed responsiveness and useful for liquid crystal display elements, etc.
CONSTITUTION: A compound of formula I [R1 is (halogen-substituted) 1-2C alkyl; R2 is 3-18C alkyl; n is 0, 1; A1, A2 are -CO-, -OCO-, etc., B1, B2 are -COO-, -OCO-, -OCH2-, etc.; X1-X3 are group of formula II, etc.; * exhibits an asymmetric carbon atom; but when n is 0, B1 is single bond], e.g. (1R, 1'R)-terephthalic acid bis [4-(1-methylhexyloxycarbonyl)phenyl ester]. The compound of formula I is produced by reacting a compound of formula III with a compound of formula IV in the presence of a base such as pyridine or triethylamine in a solvent such as methylene chloride at a temperature of -20°C to 80°C.
NAYUKI SHINICHI
ITO KEIZO
TAKEDA MITSUNORI
