Synthesis of Functionalized Furans via Chemoselective Reduction/Wittig Reaction Using Catalytic Triethylamine and Phosphine

Chia Jui Lee, Tzu Hsiu Chang, Jhen Kuei Yu, Ganapuram Madhusudhan Reddy, Ming Yu Hsiao, Wenwei Lin

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34 Citations (Scopus)


An efficient protocol for the synthesis of highly functionalized furans via intramolecular Wittig reaction has been developed using catalytic amounts of phosphine and triethylamine. Silyl chloride served as the initial promoter to activate the phosphine oxide. Reduction of the activated phosphine oxide by hydrosilane resulted in generation of phosphine, while decomposition of Et3N·HCl resulted in regeneration of base, which mediated formation of phosphorus ylide. Remarkably, the in situ generated byproduct, Et3N·HCl, also catalyzes reduction of phosphine oxide.

Original languageEnglish
Pages (from-to)3758-3761
Number of pages4
JournalOrganic Letters
Issue number15
Publication statusPublished - 2016 Aug 5


ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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