Vicarious nucleophilic substitution in enamine derivatives of 1-hydroxynaphthalene-2,4-dicarbaldehyde
作者:Koneni V. Sashidhara、Jammikuntla N. Rosaiah
DOI:10.1016/j.tetlet.2007.03.007
日期:2007.4
The reaction of aromatic amines with highly stable Schiff base enamines formed from an alkyl amine and 1-hydroxynaphthalene-2,4-dicarbaldehyde resulted in nucleophilic substitution of the alkyl amine with the aromatic amine in ethyl alcohol at room temperature within 1–2 min. This reactivity, regioselectivity and formation of stable derivatives are due to extra stabilization through extended conjugation
芳族胺与由烷基胺和1-羟基萘-2,4-二甲醛形成的高度稳定的席夫碱烯胺的反应在室温下1-2分钟内导致烷基胺被芳族胺在乙醇中进行亲核取代。这种反应性,区域选择性和稳定衍生物的形成归因于这些系统中通过延长的共轭作用而获得的额外稳定性。