Aromatic Aldehydes Ketones and Acids - Result Question 21

25. The aldehydes which will not form Grignard product with one equivalent Grignard reagents are

(2019 Main 12 Jan II)

<img src=“https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/f14bb6a6-ae99-446d-714a-437778bc5200/public"width="500">

Show Answer

Answer:

Correct Answer: 25. (b,d)

Solution:

In the above reaction, $NH _3$ prefer to attack at aliphatic aldehyde group than an less reactive aromatic aldehyde group.