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Direct and practical synthesis of 2-Arylbenzoxazoles promoted by Silica supported sodium hydrogen sulphate
Author(s): K. Ravi Kumar, P. V. V Satyanarayana, B. Srinivasa Reddy
Benzoxazole derivatives have been prepared through the reaction of 2-Amino phenols and aldehydes in the presence of catalytic amount of Silica supported sodium hydrogen sulphate (NaHSO4-SiO2) under refluxing in Dioxane solvent to obtained excellent yields.