4.4 Article

Synthesis of 3-trifluoromethylindoles via Rh-catalyzed regioselective oxidative coupling of acetanilides with trifluoromethylated alkynes

Journal

TETRAHEDRON LETTERS
Volume 57, Issue 29, Pages 3222-3225

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2016.06.049

Keywords

Synthetic methods; Indoles; Alkynes; Rhodium catalysis; C-H activation

Funding

  1. National Natural Science Foundation of China [21162012, 81261120413]
  2. Natural Science Foundation of Jiangxi Province [20142BAB203009]
  3. Foundation of Jiangxi Province Educational Committee [GJJ150321]
  4. Open Project Program of Key Laboratory of Functional Small Organic Molecule, Ministry of Education, Jiangxi Normal University [KLFS-KF-201417]
  5. China Postdoctoral Science Foundation [2015M570566]
  6. Postdoctoral Science Foundation of Jiangxi Province [2015KY02]

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A practical and efficient synthesis of 3-trifluoromethyl functionalized indoles was successfully developed via Rh-catalyzed oxidative cross-couplinglannulations of readily available acetanilides with trifluoromethylated internal alkynes. Good yields and functional group tolerance as well as excellent regioselectivities were achieved under mild reaction conditions. (C) 2016 Published by Elsevier Ltd.

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