作者:László Lázár、Anikó Göblyös、Ferenc Evanics、Gábor Bernáth、Ferenc Fülöp
DOI:10.1016/s0040-4020(98)00840-0
日期:1998.10
N-phenyl-2-arylimidazolidines proved to be ring-chain tautomeric mixtures in CDCl3. The ratios of the open and ring forms in the tautomeric equilibria of these compounds is described by the equation log Kx = ϱσ + log KX−H, used earlier for the ring-chain equilibria of saturated 2-aryl-1,3-O,N-heterocycles. These are the first examples among 2-arylimidazolidines of ring-chain tautomeric processes characterized
Ñ -甲基- ,Ñ乙基,ñ - (ñ -丙基) - , - ñ - (异-丙基) -和ñ苯基-2- arylimidazolidines被证明是在CDCl环链互变异构体的混合物3。这些化合物的互变异构平衡中的开环形式和环形式的比率由方程式log K x = ϱσ + log K X-H来描述,该方程式先前用于饱和2-芳基-1,3-的环链平衡O,N-杂环。这些是特征在于哈米特型相关性的环链互变异构过程的2-芳基咪唑烷中的第一个实例。