Insights into the reaction of trans-diarylethenes with thionyl chloride: a practical synthesis of chlorobenzo[b]thiophenes
作者:Jie Han、Qiong Wang、Xiaoyong Chang、Yuxin Liu、Yanmei Wang、Jiben Meng
DOI:10.1016/j.tet.2011.09.060
日期:2011.11
found for the first time to be also converted into cholobenzo[b]thiophenes under treatment of thionyl chloride. The chemical transformations have been mechanistically rationalized and successfully applied to a one-pot synthesis of novel fluorescent liquid crystalline compounds containing benzo[b]thiophene and 1,3,4-oxadiazole units. Their spectroscopic and mesogenic behaviours are also described.
已经研究了各种反式-1,2-二芳基醚与亚硫酰氯的反应性。在温和条件下,所有底物都可以轻松获得中等收率的3-氯苯并[ b ]噻吩和少量的苏-和赤-1,2-二氯-1,2-二芳基乙烷。首次发现苯环上带有甲氧基的1,2-二氯-1,2-二芳基乙烷的非对映异构体在亚硫酰氯的处理下也被转化为氯苯并[ b ]噻吩。化学转化已经机械化合理化,并成功地应用于一锅合成含有苯并[ b]的新型荧光液晶化合物。]噻吩和1,3,4-恶二唑单元。还描述了它们的光谱和介晶行为。