In 2-(2-alkenoyloxy)-5-alkoxytropones, showing a monotropic smectic A phase, the introduction of a double bond lowers the melting and clearing points as well as the recrystallization temperatures.
在显示单向近晶 A 相的 2-(2-烯酰氧基)-5-烷氧基托酮中,双键的引入降低了熔点和清光点以及重结晶温度。
Synthesis of 2-(alkanoyloxy)-5-alkoxytropones. Novel monocyclic rod-type liquid crystals