THE a-OXIDATION OF ACETALDEHYDE AND THE MECHANISM OF THE OXIDATION OF LACTIC ACID
نویسنده
چکیده
In previous papers (1, 2) it has been shown that in dilute aqueous solutions aldehydes may be oxidized in the a! position by oxidizing agents such as ceric sulfate, potassium dichromate, and potassium ferricyanide. Normal butyraldehyde and isobutyraldehyde yielded the most conclusive results; the latt,er was converted by ceric sulfate at 80’ into cr-hydroxyisobutyraldehyde and acetone. The evolution of carbon dioxide by the oxidation of acetaldehyde with potassium permanganate in acid solution under special conditions indicated that the a-oxidation could proceed also with this aldehyde. A study of the action of ceric sulfate on acetaldehyde in di1ut.e solution at 80” has now shown that with this reagent a-oxidation is the normal course of the reaction. A study of the action of the same reagent on lactic acid shows that the acetaldehyde first formed undergoes a-oxidation. The possible biochemical implications of this fact are considered in the concluding paragraphs of this paper.
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