15786-00-2Relevant academic research and scientific papers
Alkanoyl ester compounds and their intermediates and method of producing the same
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, (2008/06/13)
This invention provides a novel alkanoyl ester compound represented by general formula (I): STR1 (wherein A is of --, --O--, STR2 B is STR3 l and m are 1 or 2 provided that both are not simultaneously 2, k and n are an integer of 1 or more, respectively, provided that k>n, and R is an alkyl group), a liquid crystal composition containing this compound, a novel alkanoylphenyl compound or a novel alkanoylbiphenyl compound as an intermediate for the production of the above compound, and a method of producing the same. These novel alkanoyl ester compounds are excellent in the stability against light and the like and can take a liquid crystal state at a wide temperature range. Particularly, these compounds form liquid crystals of ferroelectricity having a large spontaneous polarization and a fast response rate by introducing an optically active group into the compound, so that they develop a very excellent effect as a starting material for optoelectronics and its related elements.
Liquid-crystalline substituted biphenyl esters
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, (2008/06/13)
Novel ferroelectric liquid crystals exhibiting a chiral smectic C phase and liquid crystal compositions containing the same are provided, which liquid crystals are substituted biphenyl esters expressed by the general formula STR1 wherein R1 * represents an optically active alkyl group of 4 to 18 carbon atoms; STR2 represents STR3 or STR4 Z represents R2, R2 CO or R2 COO wherein R2 represents an alkyl group or an alkoxy group each of 1 to 18 carbon atoms; and X and Y each represent hydrogen atom (H), bromine atom (Br), chlorine atom (Cl), fluorine atom (F) or cyano group (CN), and either one of X or Y is always hydrogen atom.
