Pyrimidine derivatives

Details Pyrimidine derivatives Pyrimidine derivatives

1979-12-10

1982-01-05

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544335, 2522991, C07D23920

Patent

active

043095399

ABSTRACT:
Optically active pyrimidines of the formula ##STR1## wherein Z is --(CH.sub.2).sub.n -- or --(CH.sub.2).sub.n --O-- wherein n is an integer of 1 to 4 and each of the symbols X is a nitrogen atom and each of the symbols Y is --CH-- or each of the symbols Y is a nitrogen atom and each of the symbols X is --CH--,
useful for electro-optical purposes, as well as liquid crystalline mixtures for electro-optical purposes containing compounds of the formula Ia and/or Ib, are described.
The compounds of formulas Ia and Ib are useful for electro-optical purposes, for example, in electro-optical apparatuses.

REFERENCES:
patent: 3997536 (1976-12-01), Boller et al.
patent: 4062798 (1977-12-01), Boller et al.

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