Alcohol, Phenol and EtherHard
Question
When phenol is reacted with CHCl3 and NaOH followed by acidification, salicylaldehyde is obtained. Which of the following species are involved in the above mentioned realction as intermediate ?
Options
A.
B.
C.
D.
Solution
It is Reimer-Tiemann reaction whose mechanism is is given below :
Step 1 : Formation of E+
CHCl3 + NaOH → :CCl2 + NaCl + H2O
dichloro carbene
Step 2 : Attack of E+
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