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Keywords:

  • Rearrangement;
  • Sustainable chemistry;
  • Oxygen heterocycles;
  • Spiro compounds;
  • Ethers

Abstract

A molecular rearrangement of 5,5-spirocyclic cyclopentenones to 5,6-fused cyclopentenones catalyzed by Amberlyst®15 is described. This work emphasizes the utility of renewable resources, such as furfural, that can be transformed into a variety of valuable products. It also highlights the viability of 5,5-spirocycles as intermediates en route to 5,6-fused cyclopentenones.