Question

When phenol is heated with $KOH$ and chloroform, it forms

• A. salicylaldehyde
• B. benzoic acid
• C. potassium phenolate
• D. salicyclic acid

Answer 1

Answer: (A)

When phenol is heated with $KOH$ and chloroform it forms salicylaldehyde. This reaction is called Reimer-Tiemann reaction.

If instead of chloroform, $CC{l}_4$ is used, salicylic acid is formed.