The following reaction is known as:
$Phenol \xrightarrow[H^{+}]{CHCl_3 / NaOH} \text{Salicylaldehyde}$

  • A
    Gattermann aldehyde synthesis
  • B
    Duff reaction
  • C
    Perkin reaction
  • D
    Reimer-Tiemann reaction

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