Abstract: Four new series of chiral esters, were synthesized. Their structure were determined by using IR, mass spectrum and element analysis. Phase transition temperature and phase states of these compounds were also determined. Some of these compounds exhibit ferroelectricity and chiral Smectic C(S_c~*) phase at moderate temperature. From the four series compounds, increasing the terminal group is helpful to the forming of liquid crystal, and increasing the length of chiral group is helpful to the forming of S_c~* phase and the widening of liquid crystal phase transition temperature.