Liquid crystals (LCs) containing a trifluoromethylamino group are prepared
by the cross-coupling reaction of p-bromo-substituted-(hetero)aryl(trifluor
omethyl)amines that are derived from the corresponding dithiocarbamates thr
ough oxidative desulfurization-fluorination. The novel LCs are shown to exh
ibit mainly a smectic phase over a wide range of temperatures. Their electr
o-optical properties as a component of nematic LCs are compared with those
of the corresponding methylamines.