4.6 Article

Fast regioselective sulfonylation of pyridine/quinoline N-oxides induced by iodine

Journal

ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 14, Issue 23, Pages 5317-5321

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ob00925e

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Funding

  1. National Natural Science Foundation of China [21502049, 51573040]
  2. Planned Science and Technology Project of Hunan Province, China [2015WK3003]
  3. Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation [2015CL03]
  4. Changsha University of Science & Technology, P.R. China

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Fast sulfonylation of pyridine/quinoline N-oxides induced by iodine is demonstrated herein. The regioselective protocol occurs under metal-free conditions in a short reaction time (10 min), exhibiting high efficiency (up to 92% yield) and good compatibility (up to 33 examples). A gram-scale reaction was conducted with only a slight loss of production.

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