4.7 Article

FeCl3•6H2O-Catalyzed Alkenylation of Indoles with Aldehydes

Journal

JOURNAL OF ORGANIC CHEMISTRY
Volume 77, Issue 18, Pages 8355-8361

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/jo301416s

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Funding

  1. National Basic Research Program of China [2009CB825300]
  2. National Natural Science Foundation of China [21272232]

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FeCl3 center dot 6H(2)O-catalyzed efficient C3-alkenylation of indoles was realized through the condensation of aldehydes and indole derivatives in the presence of 2 equiv of ethanol at ambient temperature, forming 3-vinylindoles in up to 93% yields. Ethanol promoted formation of the desired products. An obvious solvent effect was observed, and bisindoles were identified as the reaction intermediates.

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