ABSTRACT Some derivatives of 4-(4-alkoxyphenoxycarbonyl)phenyl 3-alkoxy-2-X-benzoates (X = F, Cl, Br, or CF3) were synthesized by means of an ortho-directed lithiation followed by an electrophilic aromatic substitution reaction, as a key step, and their thermal properties of liquid crystals were examined. These results are discussed in terms of molecular structure and electrostatic effects.
摘要 4-(4-alkoxyphenoxycarbonyl)phenyl 3-alkoxy-2-X-benzoates (X = F, Cl, Br, or
CF3) 的一些衍
生物是通过邻位
锂化和亲电芳香取代反应合成的,作为关键步骤,并检查了它们的
液晶的热性能。这些结果在分子结构和静电效应方面进行了讨论。