Phenylpyrimidine derivatives

Details Phenylpyrimidine derivatives Phenylpyrimidine derivatives

1976-08-30

1977-12-13

Padgett, Benjamin R.

Compositions

Liquid crystal compositions

260251R, 260463, 260465D, 260465E, 350150, 350160LC, C09K 334, C02F 113, C07D23926, C07D23934, C07D23948

Patent

active

040627985

ABSTRACT:
Compounds of the formula ##STR1## wherein when X is nitrogen, Y and Z are --CH--; or when Y is nitrogen, X and Z are --CH--; or when Z is nitrogen, X and Y are --CH--; and one of R.sub.1 and R.sub.2 is cyano and the other is straight-chain alkyl of 1 to 7 carbon atoms, straight-chain alkoxy of 1 to 7 carbon atoms or straight-chain alkanoyloxy of 2 to 7 carbon atoms,
Prepared by a variety of methods, are described. The compounds of the invention are useful as components of nematic mixtures.

REFERENCES:
patent: 3947375 (1976-03-01), Gray et al.
patent: 3974087 (1976-08-01), Gray et al.
patent: 3997536 (1976-12-01), Boller et al.
Zaschke; H., et al., J. Prakt. Chemie., vol. 315, No. 6, pp. 1113-1120 (1973).
Schubert; H., et al., J. Prakt Chemie., vol. 312, pp. 494-506 (1970).
Zaschke; H., J. Prakt. Chemie., vol. 317, No. 4, pp. 617-630 (1975).
Nash; J. A., et al., Mol. Cryst. Liq. Cryst., vol. 25, pp. 299-317 (1974).
Gray; G. W., et al., Liquid Crystals & Plastic Crystals, vol. 1, John Wiley & Sons, Inc., N.Y., pp. 103-125, 138-143 (1974).

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