Phenylpyrimidinecarboxylate derivative

Details Phenylpyrimidinecarboxylate derivative Phenylpyrimidinecarboxylate derivative

1989-06-13

1992-05-12

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

544335, C09K 1934, C07D23902

Patent

active

051125234

ABSTRACT:
A novel phenylpyrimidinecarboxylate derivative which, when used as a component of liquid crystal compositions, can raise the clearing point of the mesomorphic range of the liquid crystal compositions and/or increase the dielectric anisotropy value of the compositions, and a liquid crystal compositions containing the derivative are provided, which derivative is expressed by the formula ##STR1## wherein X.sup.1 represents an alkyl or alkoxy each of 1-10 C; X.sup.2 represents a 4-substituted phenylk having an alkyl, of 1-10 C, F, Cl, Br or --CN at 4-position or a 3,4-disubstituted phenyl having F, Cl, Br or Cn at 4-position and F, Cl or Br at 3-position; and L represents a N atom and M represents a C atom.

REFERENCES:
patent: 4756847 (1988-07-01), Yoshida et al.
patent: 4886621 (1989-12-01), Sage et al.
Demus, D. et al., Flussge Kristalle in Tabellen II UEB Deutscner Verlag Fur Grund Stottimoustrie, Leipzig, p. 385, 1984.

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