申请人:L.C.C. Consultants Co., Ltd.
公开号:US05342546A1
公开(公告)日:1994-08-30
Particular 1,4-substituted dihydrobenzene derivatives are useful as liquid crystalline materials. They are represented by the following formula (I): ##STR1## wherein A means a 1,4-dihydrophenylene group, R denotes a hydrogen atom or an alkyl or trans-4-alkylcyclohexyl group, R' represents a hydrogen or halogen atom, a trifluoromethyl, trifluoromethoxy, cyano, alkyl, alkoxyl or carboxyl group or a group --COO--B--R" in which B stands for an unsubstituted or halogen-substituted 1,4-phenylene or 1,4-cyclohexenylene group and R" represents a halogen atom or a cyano, alkyl or alkoxyl group, and X, Y and Z individually mean a hydrogen or halogen atom.
特定的1,4-取代二氢苯衍生物可用作液晶材料。它们由以下式子(I)表示:##STR1##
其中,A表示1,4-二氢苯基基团,R表示氢原子或烷基或反式-4-烷基环己基基团,R'表示氢原子或卤素原子,三氟甲基,三氟甲氧基,氰基,烷基,烷氧基或羧基,或--COO--B--R"基团,其中B代表未取代或卤素取代的1,4-苯基或1,4-环己烯基团,R"代表卤素原子或氰基,烷基或烷氧基,X、Y和Z分别表示氢原子或卤素原子。