作者:Christopher J. Teskey、Pauline Adler、Carlos R. Gonçalves、Nuno Maulide
DOI:10.1002/anie.201808794
日期:2019.1.8
We report a method for the selective α,β‐dehydrogenation of amides in the presence of other carbonyl moieties under mild conditions. Our strategy relies on electrophilic activation coupled to in situ selective selenium‐mediated dehydrogenation. The α,β‐unsaturated products were obtained in moderate to excellent yields, and their synthetic versatility was demonstrated by a range of transformations.
我们报告了一种在温和条件下在其他羰基存在下选择性 α,β-脱氢酰胺的方法。我们的策略依赖于亲电激活与原位选择性硒介导的脱氢作用相结合。α,β-不饱和产物以中等至优异的收率获得,并且它们的合成多功能性通过一系列转化得到证明。机理实验表明亲电子 Se IV物质的形成。