SYNTHESIS OF LIQUID CRYSTALS CONTAINING CHLORINE ON THE CHIRAL CENTER
A synthetic pathway is described for the preparation of the homologous series of (R)-(2-chloropropyl)-4-benzoates with high optical purity.The liquid crystalline members of the series exhibit smectic A phase and can be used as chiral dopants in ferroelectric mixtures.The n=8 member was used in a mixture exhibiting monotropic and the n=9 member enantiotropic smectic C* phase around room temperature.