Captodative olefin 3-p-nitrobenzoyloxy-3-buten-2-one as a Diels-Alder ketene equivalent for the synthesis of γ-hydroxycyclohexenones

María E. Ochoa, María S. Arias, Raúl Aguilar, Francisco Delgado, Joaquín Tamariz

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A short and regioselective synthesis of γ-hydroxycyclohexenones is described, using 3-p-nitrobenzoyloxy-3-buten-2-one (2a) as a ketene equivalent in Diels-Alder reactions with substituted dienes. Oxidation with MCPBA of the α-acetylcyclohexenol derivative, obtained by hydrolysis of the cycloadducts, led to the corresponding γ-hydroxycyclohexenones in moderate overall yields. Evidence of the mechanism is provided.

Original languageEnglish
Pages (from-to)14535-14546
Number of pages12
JournalTetrahedron
Volume55
Issue number51
DOIs
StatePublished - 17 Dec 1999

Keywords

  • Captodative olefin
  • Diels-Alder
  • Ketene equivalent
  • γ- hydroxycyclohexenones

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