Q. Reaction of phenol with chloroforms/sodium hydroxide to give $o$-hydroxy benzaldehyde involves the formation of
A) Dichloro carbene
B) Trichloro carbene
C) Chlorine atoms
D) Chlorine molecules
Explanation
(a)
Phenol reacts with chloform and NaOH to give $o$-hydroxy benzaldehyde or salicylaldehyde. In this reaction dichlorocarbene $\left( : CCl_{2} \right)$ electrophile is generated. This reaction is called Reimer-Tiemann reaction.
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Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.