Oxidative Entry into the Illicium Sesquiterpenes: Enantiospecific Synthesis of (+)-Pseudoanisatin

J Am Chem Soc. 2016 Dec 28;138(51):16616-16619. doi: 10.1021/jacs.6b11739. Epub 2016 Dec 16.

Abstract

Illicium sesquiterpenes have been the subject of numerous synthetic efforts due to their ornate and highly oxidized structures as well as significant biological activities. Herein we report the first chemical synthesis of (+)-pseudoanisatin from the abundant feedstock chemical cedrol (∼$50 USD/kg) in 12 steps using extensive site-selective C(sp3)-H bond functionalization. Significantly, this work represents a novel oxidative strategic template for future approaches to these natural products and their analogs.

Publication types

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

MeSH terms

  • Chemistry Techniques, Synthetic
  • Illicium / chemistry*
  • Lactones / chemical synthesis*
  • Lactones / chemistry*
  • Oxidation-Reduction
  • Sesquiterpenes / chemical synthesis*
  • Sesquiterpenes / chemistry*
  • Spiro Compounds / chemical synthesis*
  • Spiro Compounds / chemistry*
  • Stereoisomerism

Substances

  • Lactones
  • Sesquiterpenes
  • Spiro Compounds
  • anisatin