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प्रश्न
Write note on Reimer-Tieman reaction.
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उत्तर
Phenol is subjected to heating with chloroform in the presence of aqueous sodium hydroxide. Subsequently, acidification with dilute HCl yields salicylaldehyde (2-hydroxy benzaldehyde) as the principal product, which can be isolated from the p-isomer using steam distillation. The stability of the o-isomer is due to intramolecular hydrogen bonding.
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