New Optically Active Liquid Crystal Compounds: (+)-4-Alkoxyphenyl 4-[5-(2-Methylbutyl)-1,3-oxathian-2-yl]benzoates
作者:Yuichiro Haramoto、Hiroyoshi Kamogawa
DOI:10.1246/bcsj.63.3063
日期:1990.11
New liquid-crystal compounds, (+)-4-alkoxyphenyl 4-[5-(2-methylbutyl)-1,3-oxathian-2-yl]-benzoates (9), have been synthesized. The mesomorphic behaviors of these compounds were compared with those of (+)-4-(2-methylbutoxy)phenyl 4-(5-alkyl-1,3-oxathian-2-yl)-benzoates and (+)-4-(5-alkyl-1,3-oxathian–2-yl)phenyl-4-(2-methylbutoxy)benzoates; compounds 9 exhibit a cholesteric phase and their transtition
新的液晶化合物,(+)-4-烷氧基苯基 4-[5-(2-甲基丁基)-1,3-oxathian-2-yl]-苯甲酸酯 (9),已被合成。将这些化合物的介晶行为与(+)-4-(2-甲基丁氧基)苯基4-(5-烷基-1,3-氧杂-2-基)-苯甲酸酯和(+)-4-( 5-烷基-1,3-氧杂-2-基)苯基-4-(2-甲基丁氧基)苯甲酸酯;化合物 9 表现出胆甾相,并且发现它们向各向同性的转变温度低于相应化合物的转变温度。这些特性似乎源于由 1,3-氧杂环庚烷环的 5 位的 2-甲基丁基和 1,3-氧杂环庚烷环中的分子弯曲引起的更宽的分子宽度。