KMnO۴/HOAc system promoted onepot synthesis of benzoxazoles from oaminophenols or oxidative cyclization of o-hydroxyarylidene anilines at room temperature

چکیده مقاله

1,3-Benzoxazoles via oxidative cyclization of corresponding o-hydroxyarylidene anilines was synthesized in the presence of KMnO4/HOAc system. This system also was applied for the one-pot synthesis of 1,3-benzoxazoles from o-amino phenols and aldehydes. The both protocols were processed at room temperature under solvent- free conditions with good to excellent yields.