Chinese Journal of Chemistry p. 773 - 777 (2011)
Update date:2022-08-02
Topics:
Fan, Xuesen
He, Yan
Wang, Yangyang
Zhang, Xinying
Wang, Jianji
An efficient synthesis of 2-substituted benzoxazoles through RuCl 3·3H2O catalyzed, air oxidized tandem reactions of 2-aminophenols and aldehydes in [bmim]BF4 was developed. This synthetic strategy has such advantages as mild reaction conditions, cost-free oxidant, readily available starting materials, and recyclable catalyst and solvent. As an application, it was successfully used in the synthesis of the unreported 5-(benzoxazol-2-yl)-2′-deoxyuridines with potential biological activities. A novel and efficient synthesis of 2-substituted benzoxazoles through RuCl3 catalyzed, air oxidized tandem reactions of 2-aminophenols and aldehydes in [bmim]BF4 was developed.
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