Adipic acid: spot the conditions flaw

Single question

One-step oxidation of KA oil (cyclohexanol plus cyclohexanone) to adipic acid with concentrated nitric acid and a Cu/V catalyst. The reaction class and reagents match the industrial route. Check the temperature.

Nitric acid oxidation of cyclohexanone to adipic acid

Industrial reactor conditions for ring-opening oxidation

Why cold nitric acid stops at alpha-hydroxy intermediates

Find the flaw

Click the step that contains the flaw, or pick “No flaw” if you think every step is correct.

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