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The reduction potential of benzyl viologen: an important reference compound for oxidant/radical redox couples

P Wardman1

  • 1Cancer Research Campaign, Mount Vernon Hospital, Northwood, Middlesex, U.K.

Free Radical Research Communications
|January 1, 1991
PubMed

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Birch reduction uses solvated electrons as reducing agents. The reaction converts benzene to 1,4-cyclohexadiene. The reaction proceeds by the transfer of a single electron to the ring to form a benzene radical anion. This anion is highly basic—it abstracts a proton from the alcohol to form a cyclohexadienyl radical. Another single electron transfer gives the cyclohexadienyl anion. A proton transfer from the alcohol forms 1,4-cyclohexadiene. Since this reduction occurs via radical anion...
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