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

J Org Chem. 2017 Dec 15;82(24):13051-13067. doi: 10.1021/acs.joc.7b02030. Epub 2017 Nov 21.

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.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkenes / chemistry*
  • Cyclization
  • Diterpenes / chemistry*
  • Lactones / chemistry*
  • Models, Biological*
  • Molecular Structure
  • Propane / chemistry*

Substances

  • Alkenes
  • Diterpenes
  • Lactones
  • ineleganene
  • Propane