4.4 Article

The direct C-H halogenations of indoles

Journal

TETRAHEDRON LETTERS
Volume 55, Issue 14, Pages 2243-2245

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2014.02.071

Keywords

C-H funtionalization; Transition-metal free; Halogenation; Indoles

Funding

  1. National Science Foundation of China [21325206, 21172006]
  2. National Young Top-notch Talent Support Program
  3. Ph.D. Programs Foundation of the Ministry of Education of China [20120001110013]

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A novel and efficient transition metal-free C-H bond halogenation of indole derivatives has been developed. 3-Halogenated (3-Br, 3-I) indoles are highly regioselectively produced by this protocol. Simple and readily available halide salts (TBAB, KI) are employed as the halogen source. The transition metal-free and the mild conditions make this protocol very easy to handle and practical. (C) 2014 Elsevier Ltd. All rights reserved.

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