Decalin-carbonitriles

Details Decalin-carbonitriles Decalin-carbonitriles

1984-06-01

1986-07-15

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

2522995, 25229962, 25229963, 350350R, 544294, 549372, 549373, 549374, 549375, 558423, 558414, 558411, 558419, C09K 334, G02F 113, C07D31906, C07C12146, C07C12100

Patent

active

046005285

ABSTRACT:
New decalin-carbonitriles of the formula I ##STR1## wherein R.sup.1 is an alkyl group with 1-10 C atoms, it being possible for up to two CH.sub.2 groups to be replaced by O atoms, Z is --CH.sub.2 CH.sub.2 --, --CO--O--, --O--CO--, --O--CH.sub.2 --, --CH.sub.2 O-- or a single bond, A is 1,4-phenylene, 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl, 1,4-bicyclo(2,2,2)octylene, pyrimidine-2,5-diyl or a single bond, and R.sup.2 is an alkyl group with 1 to 10 C atoms, it being possible for up to two CH.sub.2 groups to be replaced by O atoms, or is F, Cl, Br, CN, --O--COR.sup.3 or --COOR.sup.3, or, if at least one of the groups Z and A is not a single bond, can also be H and R.sup.3 is alkyl of 1 to 6 C atoms, and the acid addition salts of basic compounds of this type, are suitable for use as components of liquid crystal dielectrics.

REFERENCES:
patent: 4386007 (1983-05-01), Krause et al.
patent: 4406814 (1983-09-01), Ferrato
patent: 4421670 (1983-12-01), Deutscher et al.
patent: 4432885 (1984-02-01), Petrzilka et al.
patent: 4434073 (1984-02-01), Sucrow et al.
patent: 4438268 (1984-03-01), Zaschke et al.
patent: 4510069 (1985-04-01), Eidenschink et al.

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