| abstract |
NEW MATERIAL:The optically active compound of formula I [R and R' are 3-20C alkyl which may have asymmetric carbon atom: X is single bond, O, S, COO or OCOO; A is 2,6-naphthalene group which may have a substituent (F, Cl, NO 2 or CN); Y is COO, CH 2 O or O]. n EXAMPLE: Optically active 2-n-decyloxy-6-(1-trifluoromethylheptyloxy-carbonyl) naphthalene. n USE: A component of ferroelectric liquid crystal composition effective in improving the response speed by remarkably increasing spontaneous polarization value of a liquid crystal compound or liquid crystal composition used as the matrix. n PREPARATION: The compound of formula 5 which is one of the compound of formula I can be produced by converting a compound of formula 2 to a compound of formula 3 with thionyl chloride and reacting the product with an optically active alcohol of formula 4 in the presence of a base such as pyridine. n COPYRIGHT: (C)1990,JPO&Japio |