Metal alkylperoxides are remarkable, highly effective, yet often thermally unstable, oxidants that may react through a number of possible pathways including O–O homolytic cleavage, M– O homolytic cleavage, nucleophilic O-atom transfer, and electrophilic O-atom transfer. Here we describe a series of zinc alkyl compounds of the type ToMZnR (ToM= tris (4, 4-dimethyl-2- oxazolinyl) phenylborate; R= Et, n-C3H7, i-C3H7, t-Bu) that react with O2 at 25° C to form ...