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Keywords:

  • alkynes;
  • diaminations;
  • domino reactions;
  • heterocycles;
  • indole
Thumbnail image of graphical abstract

“I” did it: A sequential intramolecular amination/N-demethylation/amidation of internal acetylenes in the presence of a catalytic amount of Pd(OAc)2 and nBu4NI afforded indolo[3,2-c]isoquinolinones under mild aerobic conditions (see scheme, DMSO=dimethyl sulfoxide). The iodide ion was regenerated by reaction of in situ generated MeI with HOAc present in the reaction mixture.