[PDF] aldehydes may oxidize to form

Aldehydes have a proton attached to the carbonyl carbon which can be abstracted, allowing them to be easily oxidized to form carboxylic acids.
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  • What are aldehydes oxidized to form?

    Under acidic conditions, the aldehyde is oxidized to a carboxylic acid. Under alkaline conditions, this couldn't form because it would react with the alkali. A salt is formed instead.

  • What oxidizes aldehydes to carboxylic acids?

    Although aldehydes are prone to oxidation in the biological system, most aldehydes are generally inert to autoxidation and traditionally need strong oxidants including permanganate, dichromate, periodate, and oxone for the catalytic oxidation of aldehydes into corresponding carboxylic acids (Figure 1b).

  • Can aldehydes be oxidized and reduced?

    Aromatic aldehydes (ArCHO), and other aldehydes that lack an ?-hydrogen, undergo an unusual oxidation-reduction reaction (the Cannizzaro reaction) when treated with a strong base such as sodium hydroxide (NaOH). Half of the aldehyde molecules are oxidized, and the other half are reduced.
  • Making aldehydes
    Aldehydes are made by oxidising primary alcohols. There is, however, a problem. The aldehyde produced can be oxidised further to a carboxylic acid by the acidified potassium dichromate(VI) solution used as the oxidising agent. In order to stop at the aldehyde, you have to prevent this from happening.
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