4.7 Article

Highly enantioselective yttrium(III)-catalyzed Friedel-Crafts alkylation of beta-trichloro(trifluoro)methyl aryl enones with indoles

Journal

CHEMICAL COMMUNICATIONS
Volume 47, Issue 27, Pages 7821-7823

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c1cc12306h

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Funding

  1. National Natural Science Foundation of China [20732003, 21021001]
  2. Basic Research Program of China (973 Program) [2011CB808600]

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An efficient yttrium( III)- catalyzed highly enantioselective Friedel-Crafts alkylation of beta-trichloro(trifluoro)methyl aryl enones is described. The reaction delivered a series of functionalized indoles with a chiral tertiary carbon center bearing a trichloro(trifluoro) methyl group in excellent results (up to 96% ee and 99% yield) under mild conditions.

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