Novel halogen-containing ester compounds, and their intermediates, and method of producing the same as well as liquid crystal compositions containing the same and light switching elements.

摘要

This invention provides a novel halogen-containing ester compound represented by the following general formula ( I ): <CHEM> (wherein R is an alkyl group, A is selected from a single bond, -O-, -COO- and -CO-, both of X and Y are halogen atoms or either one of X and Y is a halogen atom and the other is a hydrogen atom, each of m and n is 0 or 1, m+n=0 or 1, each of k and l is an integer of 1 or more, provide k< l ), a liquid crystal composition and a light switching element each containing the above compound as well as a novel fluorophenol compound represented by the following general formula ( II ): <CHEM> (wherein each of k and l is an integer of 1 or more, provided k< l ) as an intermediate for the synthesis of the above ester compound and a method of producing the same.