Aryne [3 + 2] cycloaddition with N-sulfonylpyridinium imides and in situ generated N-sulfonylisoquinolinium imides: a potential route to pyrido[1,2-b]indazoles and indazolo[3,2-a]isoquinolines

Jingjing Zhao, Pan Li, Chunrui Wu, Hongli Chen, Wenying Ai, Renhong Sun, Hailong Ren, Richard C. Larock, Feng Shi
  • Organic & Biomolecular Chemistry, January 2012, Royal Society of Chemistry
  • DOI: 10.1039/c2ob06611d