Influence des substituants sur la vitesse de racémisation des cétones à carbone dissymétrique en alpha
作者:A. K. Mills、A. E. Wilder Smith
DOI:10.1002/hlca.19600430705
日期:——
The rates of racemisation, under constant conditions of pH and temperature, of two series of ketones with an asymmetric C-atom in α have been determined. As would be expected, substituents in the α position to the keto group influence the rate of racemisation, and it has been found possible to assess the relative electron donating or electron attracting effect of aliphatic, aliphatic-aromatic or aromatic
确定了在恒定的pH和温度条件下,α原子中具有不对称C原子的两个酮的外消旋化速率。如所期望的,在酮基的α位上的取代物影响外消旋化的速率,并且已经发现可以通过测量它们对脂族,脂族-芳族或芳族取代基的相对给电子或吸电子效应进行评估。含有所考虑的替代品的酮的外消旋化速率。