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Keywords:

  • alkenes;
  • asymmetric synthesis;
  • diamines;
  • iodine(III) reagents;
  • oxidation
Thumbnail image of graphical abstract

Metal-free and asymmetric: The first enantioselective diamination of styrenes simply requires a chiral hypervalent iodine(III) reagent as an oxidant and bismesylimide as a nitrogen source (see scheme, Ms=methanesulfonyl). The reaction proceeds under mild conditions and with high enantiomeric excess.