Silver(I)- or Copper(II)-Mediated Dearomatization of Aromatic Ynones: Direct Access to Spirocyclic Scaffolds
作者:Michael J. James、James D. Cuthbertson、Peter O'Brien、Richard J. K. Taylor、William P. Unsworth
DOI:10.1002/anie.201501812
日期:2015.6.22
A high‐yielding silver(I)‐ or copper(II)‐catalyzed dearomatizing spirocyclization strategy allows the conversion of simple aromatic compounds that contain ynone substituents, including indole, anisole, pyrrole, and benzofuran derivatives, into functionalized spirocyclic scaffolds. A high‐yielding asymmetric variant furnishes spirocyclic indolenines in up to 89:11 e.r.
一种高产的银(I)或铜(II)催化的脱芳构螺环化策略可以将含有ynone取代基的简单芳族化合物(包括吲哚,苯甲醚,吡咯和苯并呋喃衍生物)转化为功能化的螺环骨架。一种高产的不对称变异体,可在高达89:11 er的温度下提供螺环吲哚胺