Exo/endo selectivity-control in Lewis-acid catalyzed tandem heterocyclization/formal [4+3] cycloaddition: synthesis of polyheterocycles from 2-(1-alkynyl)-2-alken-1-ones and 1,3-diphenylisobenzofuran

Hongyin Gao, Xingxing Wu, Junliang Zhang
  • Chemical Communications, January 2010, Royal Society of Chemistry
  • DOI: 10.1039/c0cc02778b