Issue 0, 1971

Free-radical reductions of arenediazonium ions in aqueous solution. Part I. Toluene-p-diazonium ions reduced with methanol

Abstract

60 Co γ-Radiation has been used to initiate the free-radical reduction reaction (i) and the mechanism is shown to be as in reactions (ii)—(iv), where reactions (ii) and (iii) are the propagating steps and reaction (iv) the terminating ArN2++ CH3OH ArH + N2+ CH2O + H+(i), Ar˙+ CH3OH ArH +·CH2OH (ii), ArN2++·CH2OH Ar˙+ CH2O + H++ N2(iii), Ar˙+ ArN2+ products (iv) step. Pulse radiolysis shows reaction (ii) to be rate-determining. The photochemically induced reaction to yield the same products is shown to occur with quantum yields greater than unity. The products and importance of reaction (iv) with respect to some recent e.s.r. flow studies of Norman et al. is discussed.

Article information

Article type
Paper

J. Chem. Soc. B, 1971, 1574-1578

Free-radical reductions of arenediazonium ions in aqueous solution. Part I. Toluene-p-diazonium ions reduced with methanol

J. E. Packer, D. B. House and E. J. Rasburn, J. Chem. Soc. B, 1971, 1574 DOI: 10.1039/J29710001574

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