' A ' in the given reaction is

' A ' in the given reaction is

 

  1.  

     

  2.  

  3.  

  4.  

Solution

Here the alcohol group acts like a nucleophile in the first reaction, subsequently intra-molecular esterification occurs. Chain of reactions are:

 

 

Asked in: JEE Main 2023 (25 Jan Shift 2)

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