A new synthetic alternative to the synthesis of 3-methyl indoles and 3-methyl indoline-2-ols with an excellent atomic economy is presented in this study. It is demonstrated that the intramolecular interrupted hydroaminomethylation (HAM) reaction is a powerful tool for the formation of these compounds, which exhibit wide-ranging biological activity. Several N-Protected-2-vinyl anilines were synthesized and involved in the reaction producing the corresponding 3-methylindole or 3-methyl indoline-2-ol depending on the nature of the N-protecting groups.
本研究提出了一种新的合成
3-甲基吲哚和
3-甲基吲哚啉-2-醇的合成方法,具有良好的原子经济性。结果表明,分子内断裂的
羟胺甲基化(H
AM)反应是形成这些化合物的强大工具,这些化合物具有广泛的
生物活性。合成了几种N-保护的2-
乙烯基苯胺,并参与反应,根据N保护基的性质产生相应的
3-甲基吲哚或
3-甲基吲哚啉-2-醇。