Enantio- and Stereoselective Construction of Atisane Scaffold via Organocatalytic Intramolecular Michael Reaction and Diels-Alder Reaction

Hiroko Sekita, Kyohei Adachi, Ippei Kobayashi, Yusuke Sato, Masahisa Nakada

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

An enantio- and stereoselective construction of the atisane scaffold via organocatalytic intramolecular Michael reaction and Diels-Alder reaction is described. The organocatalytic intramolecular Michael reaction has been found to stereoselectively generate a trans-stereodiad comprising an all-carbon quaternary and a tertiary stereogenic centers. Use of the chiral secondary amine bearing thiourea with benzoic acid as additive is the key to obtaining the desired product with excellent ee in synthetically acceptable yield. The prepared chiral building block has been successfully converted to the compound including the atisane scaffold via the highly stereoselective intramolecular Diels-Alder reaction.

Original languageEnglish
Pages (from-to)2390-2393
Number of pages4
JournalOrganic Letters
Volume19
Issue number9
DOIs
Publication statusPublished - 2017 May 5

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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