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Keywords:

  • asymmetric synthesis;
  • butenolides;
  • catalysis;
  • enones;
  • organometallics
Thumbnail image of graphical abstract

Vinylogous reactions: The direct asymmetric vinylogous conjugate additions of γ-aryl- and alkyl-substituted butenolides to enones was realized for the first time by a designed and tested metal/organo dual-activation strategy, in which two effective metal/organo cooperative catalytic systems have been built (see scheme).