Phosphine-catalyzed [3+2] annulation of α-substituted allenoates with ester-activated α,β-unsaturated imines: a novel variation of the Lu [3+2] cycloaddition reaction

Junjun Tian, Zhengjie He
  • Chemical Communications, January 2013, Royal Society of Chemistry
  • DOI: 10.1039/c3cc38264h