Allylic Substitution versus Suzuki Cross-Coupling: Capitalizing on Chemoselectivity with Bifunctional Substrates
作者:Mahmud M. Hussain、Patrick J. Walsh
DOI:10.1002/anie.200905399
日期:2010.3.1
One catalyst, two reactions—a tale of chemoselectivity: Given the choice between an allylic acetate and a vinylboronate ester, palladium preferentially reacts with the allylic acetate to give the allylicsubstitution product. In the presence of an aryl bromide and base, Suzuki cross‐coupling subsequently ensues to afford allylic amines (see scheme; pin=pinacol, THF=tetrahydrofuran).