4.8 Article

Iron-Catalyzed 2-Arylbenzoxazole Formation from o-Nitrophenols and Benzylic Alcohols

Journal

ORGANIC LETTERS
Volume 14, Issue 11, Pages 2722-2725

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol300937z

Keywords

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Funding

  1. National Natural Science Foundation of China [20902076, 21172185]
  2. Hunan Provincial Natural Science Foundation of China [11JJ1003]
  3. New Century Excellent Talents in University from Ministry of Education of China [NCET-11-0974]
  4. Scientific Research Foundation for Returned Scholars, Ministry of Education of China [2011-1568]

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The iron-catalyzed 2-arylbenzoxazole formation from o-nitrophenols and benzylic alcohols using hydrogen transfer is described. Various 2-arylbenzoxazoles were selectively obtained in good to excellent yields. The reaction tolerated a wide range of functionalities. The alcohol oxidation, nitro reduction, condensation, and dehydrogenation were realized in a cascade without external reducing reagent and oxidant.

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