Iron- or Cobalt-Catalyzed Nazarov Cyclization: Asymmetric Reaction and Tandem Cyclization-Fluorination Reaction

[摘要]：We succeeded in demonstrating the iron- or cobalt-catalyzed asymmetric Nazarov cyclization of divinyl ketones using iron or cobalt catalysts, which were prepared from Co(ClO4)(2)center dot 6H(2)O, Fe(ClO4)(2)center dot 6H(2)O, or Fe(OTf)(2) with a chiral pybox-type ligand. Furthermore, we found that Fe(OTf)(2) effectively catalyzed the tandem Nazarov cyclization-fluorination reaction of divinyl ketones.

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