2,5-DISUBSTITUTED HETEROCYCLES AND FLIGHT CRYSTALINE MEDIUM.

摘要

New 2,5-disubstituted heterocycles of formula (I), where n is a number between 1 and 10, Het is (a), (b) or (c), ring A is trans-1,4-cyclohexylene or, if Het is (c), X = -OCF3 or -CHF2 and/or Y = Z = F or 1,4-phenylene, X is CH, F, Cl, -CF3, -OCF3 or -CHF2, and Y and Z independently denote H or F, can be used as components of mesomorphous media.