treatment of 4-hydroxypyridine with cholestery p-(ω-bromoalkyloxy)benzoates in N,N-dimethylformamide containing K2CO3 gave cholestery p-[ω-(4-pyridyloxy)alkyloxy]benzoates, which exhibited liquid crystalline properties
在含有K 2 CO 3的N,N-二甲基甲酰胺中用胆甾型对-(ω-
溴烷氧基)
苯甲酸酯处理4-
羟基吡啶,得到胆甾型对-[ω-(4-
吡啶基氧基)烷氧基]
苯甲酸酯,表现出液晶性质