Hydroterphenyls

摘要

New hydroterphenyls of formula I R1-Cy-Cy-Ph-R2 I wherein R1 is alkyl; R2 is H, F, Cl, Br, I, OH, CN, alkyl, -O-alkyl, -COOR3 or -O-CO-R3; R3 is H, alkyl, -Cy-alkyl, -Ph-alkyl, -Ph-O-alkyl, -Ph-CN or -Ph-F; Cy is 1,4-cyclohexylene; and Ph is 1,4-phenylene; can be used as dielectrics for electrooptical display elements.