Write short notes on the following: Reimer-Tiemann's reaction
Write short notes on the following: Reimer-Tiemann's reaction
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Solution and Explanation
Step 1: Reimer-Tiemann reaction is used to introduce a formyl (-CHO) group into phenol.
Step 2: Reaction: \[ C_6H_5OH + CHCl_3 + NaOH \rightarrow o-\text{hydroxybenzaldehyde} + p-\text{hydroxybenzaldehyde} \]
Step 3: The reaction mechanism involves the formation of a dichlorocarbene intermediate, which undergoes electrophilic substitution at the ortho- and para-positions of phenol.
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