作者:J. Alvarez-builla、J.L. Novella、E. Gálvez、P. Smith、F. Florencio、S. Garciá-Blanco、J. Bellanato、M. Santos
DOI:10.1016/s0040-4020(01)87473-1
日期:1986.1
Kröhnke condensation of several cycloimmonium salts with p-dimethylaminobenzaldhyde has been studied. X-Ray diffraction, IR and Raman spectra, 1H-and 13C-NMR and UV spectra of the products are discussed, being compared, when necessary, with the starting pyridinium salts. All compounds showed the Z configuration, corresponding to the more stable structure, except one, in which steric factors were predominant
已经研究了几种环亚铵盐与对二甲基氨基苯甲醛的Kröhnke缩合反应。讨论了产物的X射线衍射,IR和拉曼光谱,1 H和13 C-NMR和UV光谱,并在必要时与起始吡啶鎓盐进行比较。所有化合物均显示Z构型,对应于更稳定的结构,但其中一个以空间因素为主。