Tercyclohexyls
AssigneeMerck Patent GmbH
InventorsWolfgang Sucrow, Herbert Wolter, Rudolf Eidenschink
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Abstract
Liquid-crystalline tercyclohexyls of the formula ##STR1## in which R is an alkyl group with 1-12 C atoms, in which one or two non-adjacent CH.sub.2 groups can be replaced by 0, X is --CN, --COOR.sup.1, --OOCR.sup.1, --COR.sup.1 or R.sup.1, and R.sup.1 is an alkyl group having 1-12 C atoms, with the proviso that in the case where X=R.sup.1 at least one CH.sub.2 group in the alkyl group R is replaced by 0, and useful in liquid-crystalline dielectrics.
Claims10
In a liquid crystalline phase having at least two liquid-crystalline components, the improvement wherein at least one component is a tercyclohexyl of the formula ##STR5## wherein R is alkyl of 1-12C atoms,
- X is --COOR.sup.1, --OOCR.sup.1, --COR.sup.1 or OR.sup.2 ;
- R.sup.2 is alkyl of 1-11C atoms and
- R.sup.1 is alkyl of 1-12C atoms.
Dependencies are inferred from the claim text.