History of the Discovery of the 12Dioxane Synthesis Using ManganeseIII Complexes

Manganese compounds are used as oxidant and catalyst in the various electron-transfer reactions in vivo involving the Mn(II), Mn(III), or Mn(IV) oxidation states. In particular, manganese complexes play an important role as oxygen carrier, similar to iron and copper porphyrins such as hemoglobin and hemocyanin. Manganese compounds have a peculiar nature for the reaction with molecular oxygen.

Manganese(III) acetate dihydrate, Mn(OAc)3 ■ 2H2O, was first used in an organic synthesis by Bush and Finkbeiner [37] and Heiba and Dessau [38],

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