Gattermann-Koch reaction

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The Gattermann-Koch reaction in organic chemistry refers to a Friedel-Crafts acylation reaction in which carbon monoxide and hydrochloric acid are used in-situ with Friedel-Crafts catalyst, namely AlCl3 to produce a benzaldehye-derivative from a benzene-derivative in one step. Benzaldahyde and many aromatic aldeydes are conveniently synthesized by this reaction. Presence of traces of copper(I)chloride are also needed.


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