Patent ID: 6010642
Filing Date: 2000-01-04
Classification: C07C,C09K

Abstract:
A compound, represented by the following general formula (I): ##STR154## wherein m and n each independently represent an integer of 0 or 1;rings A, B, C and D each independently represent 1,4-phenylene group which may be substituted by fluorine atom, trans-1,4-cyclohexylene group, pyrimidine-2,5-diyl group, pyridine-2,5-diyl group, pyrazine-2,5-diyl group, pyridazine-3,6-diyl group or trans-1,3-dioxane-2,5-diyl group;R represents a C.sub.2-12 alkyl group, alkoxyl group, alkenyl group or alkoxylalkyl group or C.sub.3-12 alkenyloxy group; andz represents a fluorine atom, chlorine atom, bromine atom, cyano group, --OCF.sub.3, --OCF.sub.2 H, --CF.sub.3, --OCH.sub.2 CF.sub.3, C.sub.1-12 alkyl group or alkoxyl group, C.sub.2-12 alkenyl group or alkoxylalkyl group or C.sub.3-12 alkenyloxy group,with the proviso that Z is not an alkyl group, cyano group, fluorine atom, chlorine atom or bromine atom when m and n each are 0 and rings B and C each are 1,4-phenylene group and R is an alkyl group.