Title: A mild protocol for the synthesis of 2-arylbenzoxazoles from phenolic Schiff bases promoted by superoxide
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Scientific Publishers
Abstract
An easy and efficient oxidative cyclization of 5chiff bases, derived from the condensation of a-aminophenol with aromatic aldehydes, to 2-arylbenzoxazoles is described using in situ generated tetraethylaininonium superoxide in aprotic solvent at room temperature.