Dehydrogenation at the ethane bridge in transition metal chelates of tetradentate Schiff bases
Abstract
Dehydrogenation has been induced, under mild conditions aided by palladized carbon, in the copper(II), nickel(II), palladium(II), and oxovanadium(IV) chelates of the tetradentate Schiff base 4,4′-(ethane-1,2-diyldiimino)bis(pent-3-en-2-one); the new compounds are readily distinguished from their parent compounds by column or layer chromatography.