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AssigneeMerck Patent Gesellscaft mit beschrankter Haftung
InventorsVolker Reiffenrath, Joachim Krause, Reinhard Hittich, Eike Poetsch, Herbert Plach
Estimating the term…
Novel 1,3-dioxane derivatives of the formula I ##STR1## in which Q is CHalogen.sub.1 H.sub.3-1, CnH.sub.2n+1 --O-- or C.sub.2 H.sub.2n+1 --CH.dbd.CH--, where Halogen is F or Cl, l is 1, 2 or 3 and n is 0 to 5, r is 0 to 5, X=X'=0 and Y=Y'=CH.sub.2 or X=X'=CH.sub.2 and Y=Y'=O, Z.sup.1 and Z.sup.2 are each, independently of one another, --C.sub.2 H.sub.4 -- or a single bond, A.sup.1 is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or 3,5-difluoro-1,4-phenylene, m is 0, 1 or 2, X is F, Cl, --CF.sub.3, ---CN, --OCF.sub.3 or --OCHF.sub.2 and Y and Z are each, independently of one another, H or F, can be used as components of liquid-crystalline media.
A 1,3-dioxane derivative of the formula I ##STR19## in which Q is CHal.sub.p H.sub.3-p -- or C.sub.n H.sub.2n+1 --O--, where Hal is or Cl, p is 1, 2 or 3, n is 1 to 5, and
A 1,3-dioxane derivative of the formula I ##STR27## in which Q is CHal.sub.p H.sub.3-p -- or C.sub.n H.sub.2n+1 --O--, where Hal is F or Cl, p is 1, 2 or 3, n is 1 to 5 and
Dependencies are inferred from the claim text.