The Journal of Organic Chemistry

A search for photoresolvable mesogens: synthesis and properties of a series of liquid crystalline, axially chiral 1-benzylidene-4-[4'-[(p-alkylphenyl) ethynyl] phenyl] …

Y Zhang, GB Schuster

Index: Zhang, Yifan; Schuster, Gary B. Journal of Organic Chemistry, 1994 , vol. 59, # 7 p. 1855 - 1862

Full Text: HTML

Citation Number: 29

Abstract

A series of axially chiral l-benzylidene-4-[4'-[@-alkylphenyl) ethynyllphenyllcyclohexanes was prepared in racemic form and as optically active mixtures by application of the Hanessian olefination reaction. These compounds have two spectrally overlapping groups which leads to enhanced circular dichroism. And, with appropriate substituents, they form liquid crystal phases when heated above room temperature. The photochemical and ...