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Questions  

Some statements about Reimen-Tiemann reaction involving phenol and chloroform are given below. False statement is

a
Intermediate formed is
b
Electrophile is C. .Cl2
c
Minor product is para-hydroxy benzaldehyde
d
It is a nucleophilic substitution reaction of phenol

detailed solution

Correct option is D

CHCl3+OH-→ CCl3-+H2O; CCl3-→ C..Cl2+Cl-; It is an electrophilic substitution, the electrophile is C..Cl2 ;Minor product is p-hydroxy benzaldehyde. Salicylaldehyde stabilizes due to chelation

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When phenol is reacted with CHCI3 and NaOH followed by acidification, salicylaldehyde is obtained. Which of the following species are involved in the above mentioned reaction as intermediate?


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