Formylation reaction

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A Formylation reaction in organic chemistry is the catch-all name for any organic reaction in which an organic compound is functionalized with a formyl group -CH=O.

Aromatic formylations exist with:

dimethylformamide and phosphorus oxychloride in the Vilsmeier-Haack reaction
hexamine in the Duff reaction
carbon monoxide and hydrochloric acid in the Gattermann-Koch reaction
zinc cyanide and hydrochloric acid in the Gattermann reaction
chloroform in the Reimer-Tiemann reaction

These reactions are all electrophilic aromatic substitutions

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Category: Substitution reactions

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