Condensation of methyl-substituted six-membered heteroaromatics containing one or two nitrogen atoms with aldehyde derived from benzo-15-crown-5 ether in DMF in the presence of ButOK afforded 15-crown-5-containing hetarylphenylethenes. According to the results of NMR spectroscopy, these compounds exist as mixtures of syn and anti conformers in solution (MeCN-d3). The structures of two compounds were established by X-ray diffraction analysis.
甲基取代的含一个或两个氮原子的六元杂芳香族化合物与苯并-15-
冠醚衍生的醛在
DMF 和 ButOK 的存在下缩合,得到了含有
15-冠-5-的 hetarylphenylethenes。根据核磁共振光谱的结果,这些化合物在溶液(MeCN-d3)中以同构和反构的混合物形式存在。通过 X 射线衍射分析确定了两种化合物的结构。