Synthesis and Mesomorphic Behavior of New N-Heterotolane Liquid Crystals Containing a Naphthyl-Pyridyl Framework

Abstract

A homologous series of the new N-heterotolane was synthesized using two cross-coupling reactions mediated by copper and palladium/copper. The final compounds present a naphthyl-pyridyl framework connected by an acetylene group. The evaluation of physico-chemical properties is described. All the compounds exhibit the smectic A mesophase.

Key words

liquid crystals - N-heterotolane - naphthyl-pyridyl framework - Buchwald protocol and Sonogashira coupling

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