... aldehydes (Scheme 1). Ceric ammonium nitrate (CAN), a very inexpensive and easily available oxidizing agent, has been widely used in organic reactions,22 ... In Compre- hensiVe Heterocyclic Chemistry; Katritzky, AR, Rees, CW Eds.; Pergamon: Oxford, 1984; Vol. ... 6836 J. Org. ...