Coupling and Cyclization of <i>o</i>-Iodoanilines and Propargylic Bromides via Allenes: An Efficient Entry to Indomethacin
作者:Can Zhu、Shengming Ma
DOI:10.1021/ol401115a
日期:2013.6.7
sequential allene synthesis and cyclization has been realized in a one-pot manner. A Pd(0)-catalyzed one-pot reaction of N-Ts or -Ms 2-iodoanilines and propargylic bromides afforded indoles with pharmaceutical importance highly efficiently with diversity via sequential carbon–carbon bond coupling forming allenes and azapalladation. With this newly established methodology, an efficient approach to indomethacin