Model Studies to Access the [6,7,5,5]-Core of Ineleganolide Using Tandem Translactonization-Cope or Cyclopropanation-Cope Rearrangements as Key Steps

Abstract

Recently, we reported a convergent cyclopropanation–Cope approach to the core of ineleganolide, which was the first disclosed synthesis of the core of the norditerpene natural product ineleganolide. In this complementary work, a model system for the core of ineleganolide has been prepared through a series of tandem cyclopropanation–Cope and translactonization–Cope rearrangements. Work with this model system has enriched our understanding of the cyclopropanation–Cope rearrangement sequence. Additionally, research into this model system has driven the development of tandem translactonization–Cope rearrangements.

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