Green Synthesis and Catalysis (Nov 2020)

Transition-metal-free [3+3] annulation reaction of sulfoxonium ylides with cyclopropenones for the synthesis of 2-pyrones

  • Maoyao He,
  • Yuncan Chen,
  • Yi Luo,
  • Jianglian Li,
  • Ruizhi Lai,
  • Zengbao Yang,
  • Yuerong Wang,
  • Yong Wu

Journal volume & issue
Vol. 1, no. 2
pp. 180 – 182

Abstract

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An efficient and practical synthetic approach was developed for the tandem synthesis of trisubstituted 2-pyrone derivatives from sulfoxonium ylides and cyclopropenones. This [3+3] annulation reaction was carried out under transition-metal-free conditions. A broad range of functional groups were tolerant under mild conditions, and a variety of 2-pyrones were obtained in moderate to good yields.

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