Reaction of carboxylic acids with dioxygen complexes: A mechanistic aspect of the reaction.
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概要
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The reaction of carboxylic acids with dioxygen complexes MO<SUB>2</SUB>(PPh<SUB>3</SUB>)<SUB>2</SUB>(M=Pt, Pd) at low temperature gives rise to the selective formation of H<SUB>2</SUB>O<SUB>2</SUB> and the corresponding dicarboxylato complexes characterized by their physical properties. It is suggested that the reaction can be influenced by either the capability of reactant for coordination to metal center or the stability of resulting metal complex. An equimolar addition of CH<SUB>2</SUB>ClCOOH to the dioxygen complexes in the presence of triphenylmethyl bromide at <I>ca.</I> −70 °C gives triphenylmethyl hydroperoxide and the corresponding monocarboxylato complexes in good yields, indicating that the reaction of organic acids with MO<SUB>2</SUB>(PPh<SUB>3</SUB>)<SUB>2</SUB> proceeds by stepwise mechanism.
- 公益社団法人 日本化学会の論文