MCQ
Product is :
  • A


  • C

  • D

Answer

Correct option: B.

b
$DIBAL-H$ acts as a reducing agent and it can reduce carbocylic acid group and its derivative into aldehyde group. Also, it can convert nitriles into aldehydes. So, both the groups, $\left(- COOCH _{3}\right)$ and $(- CN )$ will get convert into $(- CHO )$ group. Therefore, option $( B )$ is the correct.

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