1,2-<i>N</i>-Migration in a Gold-Catalysed Synthesis of Functionalised Indenes by the 1,1-Carboalkoxylation of Ynamides
作者:Holly V. Adcock、Thomas Langer、Paul W. Davies
DOI:10.1002/chem.201403040
日期:2014.6.10
were accessed by a gold‐catalysed 1,1‐carboalkoxylation strategy and evolved through a highly selective 1,2‐N‐migration. This skeletal rearrangement gave functionalised indenes, and isotopic labelling confirmed the rare CN bond cleavage of the ynamide moiety. The effect of substituents on the migration has been explored, and a model is proposed to rationalise the observed selectivity.
独特的α-半胺醚金卡宾中间体通过金催化的1,1-碳烷氧基化策略获得,并通过高度选择性的1,2 -N-迁移进化。这种骨架重排产生了功能化的茚,同位素标记证实了 ynamide 部分罕见的 C N 键断裂。已经探索了取代基对迁移的影响,并提出了一个模型来合理化观察到的选择性。