Disubstituted ethanes and their use in liquid crystal materials.

摘要

Disubstituted ethanes having a formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="13" wi="74" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R is alkyl, X is selected from hydrogen,
<Chemistry id="chema02" num="0002"><Image id="ia02" he="19" wi="83" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry><Chemistry id="chema03" num="0003"><Image id="ia03" he="14" wi="83" file="IMGA0003.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry><Chemistry id="chema04" num="0004"><Image id="ia04" he="15" wi="71" file="IMGA0004.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>and;
<Chemistry id="chema05" num="0005"><Image id="ia05" he="14" wi="59" file="IMGA0005.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein each R<Sub>1</Sub> is selected from H, alkyl, alkoxy, halo and cyano and each of Q<Sub>1</Sub>,Q<Sub>2</Sub>,Q<Sub>3</Sub> and 0<Sub>4</Sub> is independently selected from H and F are useful as components of liquid crystai materials for electro-optical displays and compounds useful in the production of such components.