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Keywords:

  • asymmetric catalysis;
  • Diels-Alder reaction;
  • dienes;
  • oxindoles;
  • spiro compounds
Thumbnail image of graphical abstract

Mild Magic: A mild, enantioselective Diels–Alder reaction, catalyzed by a chiral magnesium phosphate species, has been developed for the synthesis of various chiral spirooxindoles. Molecular sieves were found to have a considerable effect when used as additives in this reaction.