... Printed in Great Britain Perqamon Journals Ltd. OXIDATION OF N-AROYLHYDRAZONES OF o-HYDROXYARYL KETONES WITH LEAD(IV)ACE : A FACILE ROUTE TO AROMATIC o-DIKETONES Antigoni Kotali and Petros G. Tsoungas Laboratory of Organic Chemistry, College of Engineering, University of Thessaloniki, Thessaloniki GR-540 06. Greece. Abstract : N-Aroylhydrazones of o-hydroxyaryl ketones are oxidized with lead(IV)ace ...