Liquid-crystalline, 1-substituted piperidine-4-carboxylic acid esters

Liquid-crystalline, 1-substituted piperidine-4-carboxylic acid esters, process for their preparation, and their use in liquid-crystalline mixtures The novel 1-substituted piperidine-4-carboxylic acid esters of the general formula (I) (I) are liquid-crystalline and exhibit, in particular, Sc or Sc* p...

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Bibliographic Details
Main Authors OHLENDORF; DIETER, GUENTHER; DIETER, WINGEN; RAINER
Format Patent
LanguageEnglish
Published 06.11.1990
Subjects
ADHESIVES
CHEMISTRY
DYES
HETEROCYCLIC COMPOUNDS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC CHEMISTRY
PAINTS
POLISHES
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Summary:Liquid-crystalline, 1-substituted piperidine-4-carboxylic acid esters, process for their preparation, and their use in liquid-crystalline mixtures The novel 1-substituted piperidine-4-carboxylic acid esters of the general formula (I) (I) are liquid-crystalline and exhibit, in particular, Sc or Sc* phases. In this formula, R1 or R2 is a radical of the general formula (II) (II) in which the rings are aromatic, heteroaromatic or optionally heteratom-containing cycloaliphatic molecular components, such as 1,4-phenylene, pyrimidine-2,5-diyl or trans-1,4-cyclohexylene, which are linked via a single bond (in the case where n and p=zero) or via functional groups Z1 or Z2 such as CO- or CH2-O, and in which k, n, m, p and q are zero or 1, where k+m+p is at least 1 and p=zero when m=zero. The other radical R1 or R2 is an optionally substituted straight-chain or branched alkyl group having 1 to 20 carbon atoms, X1 denotes, S, phenylenoxy or CH2, and X2 denotes O or phenylenoxy.
Bibliography:Application Number: US19880289229