Patent ID: 6174459
Filing Date: 2001-01-16
Classification: C07C,C09K

Abstract:
A difluorophenyl derivative compound represented by the general formula (1): ##STR292##wherein R.sub.0 is an alkyl group or an alkenyl group having 1 to 15 carbon atoms, and an optional methylene group (--CH.sub.2 --) in the alkyl group or the alkenyl group may be substituted by an oxygen atom (--O--), but 2 or more methylene groups are not consecutively substituted by the oxygen atoms; A.sub.1 and A.sub.2 are each independently a trans-1,4-cyclohexylene group, or one group selected from the group consisting of a 1,4-phenylene group, a pyrimidine-2,5-diyl group, a pyridine-2,5-diyl group, a 1,3-dioxane-2,5-diyl group, a tetrahydropyran-2,5-diyl group, a 1,3-dithian-2,5-diyl group and a tetrahydrothiopyran-2,5-diyl in which one or more hydrogen atoms on a six-membered ring may be substituted by halogen atoms; Z.sub.1 and Z.sub.2 are each independently --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 O--, --O(CH.sub.2).sub.3 -- or a single bond in which at least one of Z.sub.1 and Z.sub.2 is --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 O--, or --O(CH.sub.2).sub.3 --; X.sub.1 and X.sub.2 are each independently H, F, Cl or Br.