A simple and efficient 3-acylation of indoles under microwave-heated and solvent-free conditions is developed. This general procedure uses neutral Al2O3 as a new, green and reusable catalyst giving good to high yields within short reaction times. Utilizing such an environmentally-benign methodology, a variety of indoles bearing electron-releasing or electron-withdrawing groups were conveniently acylated.
开发出一种简单高效的3-位
吲哚酰化反应方法,该方法在无溶剂条件下采用微波加热,使用中性
Al2O3作为新型、绿色且可重复使用的催化剂,在短时间内获得良好至高产率的产物。运用这种环保的方法,多种带有供电子或吸电子基团的
吲哚化合物得以方便地进行酰化反应。