(Z)-1,3-Diphenyl-3-(2-phenylimidazo[1,2-a]heteroaryl)prop-2-en-1-ones 2-6 and isomeric [1-heteroaryl-3,5-diphenylpyrrol-2-yl]phenylmethanones 17-20 were prepared by the ferricyanide oxidation of quaternary pyridinium salts 12-16. Axial chirality and helicity of the molecules of 4 and 6 are discussed using various energy data obtained by the quantum chemical PM3 method.
(
Z)-1,3
-二苯基-3-(
2-苯基咪唑[1,2-
a]杂环芳基)丙-2-烯-1-酮2-6和同分异构体[1-杂环芳基-3,5-二苯基
吡咯-2-基]苯甲酮17-20通过对季
铵吡啶盐12-16的亚
铁氰化氧化制备而成。利用量子
化学PM3方法获得的各种能量数据讨论了化合物4和6的轴向手性和螺旋度。