Gattermann Reaction

Gattermann Reaction

What is gattermann reaction

Named after:

German chemist, Ludwig Gattermann

The gattermann reaction can be defined as a method of formylation of aromatic ring compounds. The reaction is also known by the names of Gattermann salicylaldehyde synthesis as well as gattermann formylation . The gattermann reaction is similar to the to the Friedel-Crafts reaction.

Gattermann reaction is used for obtaining chlorobenzene or bromobenzene from benzenediazonium chloride by treating it with Cu/HCl or Cu/HBr respectively.

Gattermann reaction examples

An example of a gattermann reaction is shown below

Example 1

Gattermann Reaction

Example 2

Gattermann Reaction

Example 3

Gattermann Reaction

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Practise This Question

Let's take a Rubik's cube.

We know that a Rubik's cube is made up of 27 identical smaller cubes which make up one large cube as seen in the picture above. 

Let us assume that the one of the small cubes is missing. What will be the packing fraction in this case?