Which of the following reagent can’t be used as the reagent in the dealkylation of alkylpyridines in the pyridine synthesis?

Which of the following reagent can’t be used as the reagent in the dealkylation of alkylpyridines in the pyridine synthesis? Correct Answer Copper catalyst

The oxidative dealkylation is carried out either using air over vanadium(V) oxide catalyst, by vapor-dealkylation on nickel-based catalyst, or hydrodealkylation with a silver- or platinum-based catalyst. There are no evidences found when copper is used as catalyst in this reaction.

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