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Stereocontrolled Synthesis of the Sterically Encumbered F Ring of Lancifodilactone G
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  • 作者:Kwong Wah Lai ; Leo A. Paquette
  • 刊名:Organic Letters
  • 出版年:2008
  • 出版时间:June 5, 2008
  • 年:2008
  • 卷:10
  • 期:11
  • 页码:2115 - 2118
  • 全文大小:265K
  • 年卷期:v.10,no.11(June 5, 2008)
  • ISSN:1523-7052
文摘

A stereochemically linear strategy has been developed to prepare the heavily congested F-ring sector of lancifodilactone G (1) from commercially inexpensive (R)-carvone. Prominent operations in our synthesis include Negishi-type sp2−sp3 cross-coupling and intramolecular free-radical cyclization for the purpose of appending the sidearm links of the D and H rings onto the F platform.

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