Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Ruthenium Complex Catalyzed Synthesis of 2-Substituted Benzoxazoles from o-Aminophenol and Alcohol with Spontaneous Hydrogen Evolution

  • Keun-Tae Huh (Department of Materials Science and Enginering, Kyungsung University) ;
  • Sang Chul Shim (Department of Industrial Chemistry, Kyungpook National University)
  • Published : 1993.08.20
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Abstract

o-Aminophenols react with alcohols in the presense of a catalytic amount of ruthenium catalyst at 180$^{\circ}C$ to give 2-substituted benzoxazole in good yield. The yields of 2-substituted benzoxazoles were affected by the yield of N-alkylation compound from o-aminophenol and alcohol as starting materials. During the reaction, a stoichiometric amount of hydrogen was spontaneously evolved into the gas phase.

Keywords

References

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Cited by

  1. ChemInform Abstract: Ruthenium Complex Catalyzed Synthesis of 2-Substituted Benzoxazoles from o-Aminophenol and Alcohol with Spontaneous Hydrogen Evolution. vol.25, pp.12, 1993, https://doi.org/10.1002/chin.199412190
  2. Unexpectedly Simple Synthesis of Benzazoles by tBuONa‐Catalyzed Direct Aerobic Oxidative Cyclocondensation of o‐Thio/Hydroxy/Aminoanilines with Alcohols under Air vol.21, pp.28, 1993, https://doi.org/10.1002/chem.201501184
  3. Simple Synthesis of Benzazoles by Substrate-Promoted CuI-Catalyzed Aerobic Oxidative Cyclocondensation of o-Thio/Amino/Hydroxyanilines and Amines under Air vol.146, pp.10, 1993, https://doi.org/10.1007/s10562-016-1818-2