Clay catalyzed conversion of isatoic anhydride† to 2-(o-aminophenyl)oxazolines
Abstract
A simple and environmentally safe procedure for the preparation of 2-(o-aminophenyl)oxazolines from isatoic anhydride is presented. A series of chiral derivatives of the title compound is prepared in moderate yield via natural kaolinitic clay catalyzed reactions with optically pure 2-aminoalcohols. Reaction of