α-Arylation by Rearrangement: On the Reaction of Enolates with Diaryliodonium Salts
作者:Per-Ola Norrby、Tue B. Petersen、Marcin Bielawski、Berit Olofsson
DOI:10.1002/chem.201001110
日期:——
Surprising equilibration: A new mechanism for the title reaction is supported by DFT calculations and experimental observations. The CI and OI intermediates are isoenergetic and equilibrate quickly. Thus, any chiral information induced in the initial complex will be destroyed. In the final CC bond‐forming step, a [2,3]‐rearrangement from the OI bonded intermediate is slightly preferred over the
令人惊讶的平衡:DFT计算和实验观察结果支持了标题反应的新机制。的C 我和O 我中间体等能快速地平衡。因此,在初始复合物中诱导的任何手性信息将被破坏。在最后的C C键形成步骤中,[2,3] -rearrangement从将O 我接合中间稍微优于从C [1,2]在剔除我结合异构体(参见方案)。