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 activatedalkynes. 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.