Reaktionen des 2,6-Di-tert.-butyl-4-(N-tert.-butylnitrono)-phenoxyradikals

Reactions of the 2,6-Di-tert.-butyl-4-(N-tert.-butylnitrono)-phenoxyl Radical The title compound, a phenoxyl radical containing a nitrono group, reacts with alcohols and tert.-butylhydroperoxide yielding phenol and products of secondary radical solvent reactions. The reactions with lead tetraacetate, tert.-butoxy and 2-cyanoisopropyl radicals give high yields of cyclohexadienone adducts ( 6, 7 and 10 ) containing unchanged nitrono function. The reaction with dibenzoylperoxide, however, leads to the modification of the nitrono group yielding the N-benzoyloxycarboxamide ( 8 ). In the acidic decomposition of the tert.-butoxy radical adduct we suggest a nitrenium ion ( 16 ) as an intermediate.