| Summary: | 碩士 === 輔仁大學 === 化學系 === 97 === This study describes the facile synthesis of a homologous of pyridine-containing liquid crystalline 2-(6-alkoxynaphthalen-2-yl)-6-methylquinolines (nONpQ-1, n=3-7). The subject liquid crystals were prepard in a short two-step reaction. First, (6-alkoxynaphthalen-2-yl)magnesium bromides were added to
N-phrnyloxycarbonyl-6-methylquinoline, affording a dihydroquinoline, which was then oxidized by o-chloranil. The resulting products, 2-(6-alkoxynaphthalen-2-yl)-6-methylquinolines, were obtained in good yield (50%~60%).
Thermotropic behaviors of these liquid crystals were investigated using differential scanning calorimetry(dsc) and polarized optical microscopy(pom).
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