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What is the amount of catalyst required ...

What is the amount of catalyst required in the Friedel-crafts acylation?

A

One euivalent

B

Two equivalents

C

Three equivalents

D

More that one rquivalent

Text Solution

Verified by Experts

The correct Answer is:
4

Acylation requires more than one equivalent of catalyst becaue the ketonic product also complexes with `AlCl_(3)`,
To isolate the ketonic product, dilute aq. HCl is added to decompose the complex and dissolve the Al salts. The ketone is solution in the organic layer, from which it is isolated by distillation or crystallization.
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