Abstract
We synthesized new chiral dopants having two trifluoromethyl asymmetric frames derived from an optically active 4,4,4-trifluoro-3-(4-methoxyphenyl)buthanoic acid. Some dihydroxy aryl compounds such as dihydroxy benzene, dihydroxy naphthalene, dihidroxy biphenyl were used as the central cores.Their central cores and chiral parts were linked by ester or ether bond. It was found that the helical twisting power (HTP) values of new chiral dopants were affected by the substituted positions of the chiral parts, the central core, and the types of linkage. The tendency of the HTP values were different between benzene core and naphthalene core.
