Nitrogen-containing complex ring chemical compound, application null to the liquid crystal blend and its electric - optical application which include

摘要

PURPOSE: To obtain nitrogen-contg. heterocyclic compounds which are eminently low viscous, which have a wide smectic C middle phase, which are very preferable for applications as ferroelectrics, and which can be used as superior additives for ferroelectric liquid crystalline mixture. ;CONSTITUTION: Compounds of the formula (R¹ is 5-12C alkyl or 5-12C alkenyl; R² is 1-9C alkyl or 2-9C alkenyl, provided that at least one of R¹ and R² is alkenyl; X is CH or N; n is 0 or 1; q is 2-6; r is 0 or 1, provided that the sum of q+r is at least 3; s is 0 or 1; p is 1 or 2, provided that if p is 2, then n is 0), such as 2-[4-(5-(propyloxy)-1-pentyl)phenyl]-5-{[(Z)-3- octenoyloxy]oxy}pyrimidine. Compounds of the formula wherein n being 1 can be prepared from 5-hydroxypyrimidines or 5-hydroxypyridines and acids.;COPYRIGHT: (C)1994,JPO