Why Benzaldehyde can not be synthesized by Friedel-Crafts acylation?
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Friedel–Crafts acylation involves the acylation of aromatic rings. ... ... Due to the electron-withdrawing effect of the carbonyl group, the ketone product is always less reactive than the original molecule, so multiple acylations do not occur.
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Benzaldehyde can not be synthesized by Friedel-Crafts acylation because:-
- The Friedal craft reactions typically involve the attachment of alkyl or acyl substituents to aromatic rings by electrophilic aromatic substitution.
- However, it is not possible to synthesize benzaldehyde by Friedel Craft reaction because it will require formyl chloride as a reagent which is not stable.
- There are many other mechanisms to synthesize benzaldehyde like Gatterman-Koch synthesis, Etard reaction, etc
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