question_answer

Phenol can be converted into salicyladehyde by:

A)  Etard reaction

B)  Perkin reaction

C)  Cannizaro reaction

D)  Reimer-Tiemann reaction

Correct Answer: D

Solution :

                 Phenol can be converted into salicylaldehyde by Riemer-Tiemann reaction. Etard reaction? Converts toluene into benzaldehyde Perkin's reaction \[\underset{\alpha -\beta \,unsaturated\text{ }acid}{\mathop{Benzaldehyde+acid\text{ }anhydride\xrightarrow[acid]{Salt\,of}}}\,\] Cannizaro reaction? This reaction is shown by aldehydes which do not have a-hydrogen atom. It is a disproportionation reaction. \[2HCHO\xrightarrow[{}]{50%\text{ }NaOH}HCOONa+C{{H}_{3}}OH\]