Diastereoselective Synthesis of C3-Quaternary Indolenines Using α,β-Unsaturated<i>N</i>-Aryl Ketonitrones and Activated Alkynes
作者:C. Bryan Huehls、Tyler S. Hood、Jiong Yang
DOI:10.1002/anie.201200860
日期:2012.5.21
New trick for an old dog: C3‐Quaternary indolenines were synthesized by combining readily available α,β‐unsaturated N‐aryl ketonitrones and activated alkynes. This remarkably simple and atom‐economical transformation does not require transition‐metal catalysis and involves the formation of the heterocycles with concomitant generation of two contiguous quaternary and tertiary chiral centers.
老年狗的新招数:通过将现成的α,β-不饱和N-芳基酮硝酮与活化炔烃结合起来,合成C3-季吲哚胺。这种非常简单且经济的原子转变不需要过渡金属催化,并且涉及到杂环的形成,同时产生了两个连续的四级和三级手性中心。