A simple and convenient approach was developed to the selective synthesis of 3-substituted indoles and benzofurans by the isomerization of 3-methyleneindoline and benzofuran derivatives catalyzed by Fe(OTf)3. The salient features of this method are the easy availability of substrates, high yield, mild reaction conditions, tolerance of a variety of functional groups, and use of an environmentally friendly
通过 Fe(OTf)3 催化 3-亚甲基二氢
吲哚和
苯并呋喃衍
生物的异构化,开发了一种简单方便的选择性合成 3-取代
吲哚和
苯并呋喃的方法。该方法的显着特点是底物易得、产率高、反应条件温和、对多种官能团具有耐受性以及使用环保催化剂。还提出了异构化过程的可能机制。