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Keywords:

  • annulation;
  • 1,4-addition;
  • alkenes;
  • aminoindanes;
  • cobalt;
  • boron
Thumbnail image of graphical abstract

It all adds up: The 1,4-addition of organoboronic acids to activated alkenes catalyzed by [Co(dppe)Cl2] is described. A [3+2]-annulation reaction of ortho-iminoarylboronic acids with acrylates to give various aminoindane carboxylic acid derivatives with cis-stereoselectivity is also demonstrated (see scheme; dppe=1,2-bis(diphenylphosphino)ethane).