Enantioselective synthesis of A 3,5,5-trialkylated tetronic acid derivative

Ken ichi Takao, Yuki Kojima, Tomo Miyashita, Kentaro Yashiro, Tatsuya Yamada, Kin ichi Tadano

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


A convenient and enantioselective method for the synthesis of 3,5,5-trialkylated tetronic acid has been developed. The Dieckmann-type condensation of enantioenriched α-acyloxy-α,α-dialkylated acetic acid ester (11) proceeded in the presence of lithium hexamethyldisilazide, providing the expected tetronic acid derivative (12) after quenching with methoxymethyl chloride. The product (12) was converted into a doubly prenylated tetronic acid derivative (13), which constitutes a substructure of perforatumone, a newly isolated polycyclic polyprenylated acylphloroglucinol-type natural product.

Original languageEnglish
Pages (from-to)167-172
Number of pages6
Issue number1
Publication statusPublished - 2009 Jan 1


  • Dieckmann Condensation
  • Guttiferae
  • Perforatumone
  • Sharpless Asymmetic Epoxidation

ASJC Scopus subject areas

  • Analytical Chemistry
  • Pharmacology
  • Organic Chemistry


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