Optically active compound, photoreactive chiral agent, liquid crystal composition, method for changing helical structure of liquid crystal, method for fixing helical structure of liquid crystal, liquid crystal color filter, optical film, and recording medium

摘要

The present invention provides an optically active compound represented by the following general formula (1), a photoreactive chiral agent, a liquid crystal composition, a liquid crystal color filter, an optical film, and a recording medium which include the optically active compound. wherein, Ra and Rb each independently denotes a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an alkenyl group, or an alkynyl group, Rc and Rd each independently denotes a hydrogen atom, an alkyl group, or an alkoxycarbonyl group, and L denotes a divalent group and a binaphtyl portion has an axial asymmetry of either (R) or (S).