Organic compound of the type of biphenyl radical substituted benzoate 3-fold increase, the method of manufacture and its use as a dopant for smectic liquid crystal

摘要

The invention relates to an organic compound obtained by synthesis from the acid 3,5 dihydroxybenzoic. / p & & p & it is composed, according to the invention, answer has the general chemical formula: & br / (see appended drawing in bopi) & & br / or r denotes an organic group of the alkyl, alkoxy or alkyl carboxylate comprising 1 to 15 carbon atoms and x is a nitrile group or halogen. / p & & p & the invention applies to the doping of the smectic liquid crystals and the display devices using such crystals.