Indium(III) chloride-catalyzed Mukaiyama-Michael addition: Synthesis of 2,6-anti-tetrahydropyrans

Sin Siu Chua, Anita Alni, Li Ting Jocelyn Chan, Motoki Yamane, Teck Peng Loh

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

In the presence of a catalytic amount of indium(III) chloride (InCl 3), silyl enol ethers react with dihydropyranones at ambient temperature via Mukaiyama-Michael addition to afford the corresponding 2,6-anti-tetrahydropyran adducts in moderate to good yields. This simple and mild method proceeds under neat conditions and involves simple aqueous work-up. Indium(III) chloride can be recovered and reused without significant decrease in reactivity.

Original languageEnglish
Pages (from-to)5079-5082
Number of pages4
JournalTetrahedron
Volume67
Issue number27-28
DOIs
StatePublished - 8 Jul 2011
Externally publishedYes

Keywords

  • 2,6-Anti-tetrahydropyran
  • Indium(III) chloride
  • Mukaiyama-Michael addition
  • Neat conditions

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