Liquid crystalline 4"-cyano- or 4"-nitrobenzylidene-4'-(N,N-dial

Details Liquid crystalline 4"-cyano- or 4"-nitrobenzylidene-4'-(N,N-dial Liquid crystalline 4"-cyano- or 4"-nitrobenzylidene-4'-(N,N-dial

1976-11-12

1978-08-08

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252299, 260152, 260465D, 350349, 560 86, 560 72, 350356, C07C10706, C09B 2908, C09K 334

Patent

active

041056540

ABSTRACT:
Compounds of the formula ##STR1## wherein Y and Z are different and one is nitro or cyano and the other is --N(R).sub.2 wherein R is alkyl or alkylene, preferably of 1 to 4 carbon atoms, and X can be hydrogen, methyl, fluoro or chloro, are dyes having liquid crystal properties.

REFERENCES:
patent: 3705329 (1972-11-01), Castellano
Landholt-Bornstein, "Zahlenwerte und Funrtione aus Phvser, Chemie, Astronomie, Geophysik und Technik," pp. 266, 267 and 323-325, (1960).
Yoshio et al., Chemical Abstracts, vol. 81, #'s 11355y, 11356z and 11357a, (1974).
Akio et al., Chemical Abstracts, vol. 83, #'s 69147j, 69148k, 69149m, (1975).
Murakami et al., Chemical Abstracts, vol. 84, #179850m (1976).

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