Pyridazines

Details Pyridazines Pyridazines

1982-07-12

1983-12-06

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

2522995, 25229963, 25229967, 350346, 350350R, 544224, C09K 334, C02F 113, C07D23708, C07D23702

Patent

active

044192622

ABSTRACT:
Compounds of the formula ##STR1## wherein R.sup.1 is straight-chain alkyl of 1 to 12 carbon atoms, R.sup.2 is 1-alkynyl and the 1-alkynyl group in R.sup.2 is a straight-chain group of 1 to 10 carbon atoms, their manufacture, liquid crystalline mixtures containing said compounds as well as their use for electro-optical purposes are described. The novel compounds are valuable components for liquid crystalline mixtures and have a negative dielectric anisotropy.

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