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Keywords:

  • cycloisomerization;
  • enynes;
  • gold;
  • radical reactions;
  • ring expansion
Thumbnail image of graphical abstract

Nature's first green is gold The cover picture shows the gold(I)-catalyzed cycloisomerization of O-tethered 1,6-enynes, which proceeds via fused tricyclic compounds with a dihydropyran moiety. As described in their Communication on p. 1096 ff., L. Fensterbank et al. continue this ring-expansion with a two-step sequence for the transformation of the cyclized compounds into valuable ketomacrolactones, with a motif that echoes natural products. And all this in the golden surroundings of Paris!