Mechanistic Study of Gold(I)-Catalyzed Hydroamination of Alkynes: Outer or Inner Sphere Mechanism?
作者:Alexander Zhdanko、Martin E. Maier
DOI:10.1002/anie.201402557
日期:2014.7.21
An experimental mechanisticstudy of the gold(I)‐catalyzed hydroamination shows the formation of conformationally flexible auro‐iminium salts Au‐Im, which originate from the protonation of a vinyl gold species. Rotation around the CCAu bond is the reason for the loss of stereospecificity of protodeauration, which explains the stereochemical result of the Stradiotto reaction. The ambiguity about inner