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)
(a)
(c)
(b)
(d)
Passage Based Questions
Paragraph X
Treatment of benzene with $CO / HCl$ in the presence of anhydrous $AlCl _3 / CuCl$ followed by reaction with $Ac _2 O / NaOAc$ gives compound $X$ as the major product. Compound $X$ upon reaction with $Br _2 / Na _2 CO _3$ followed by heating at $473 K$ with moist $KOH$ furnishes $Y$ as the major product. Reaction of $X$ with $H _2 / Pd-C$, followed by $H _3 PO _4$ treatment gives $Z$ as the major product.
Show Answer
Answer:
Correct Answer: 25. (a)
Solution:
In the above reaction, $NH _3$ prefer to attack at aliphatic aldehyde group than an less reactive aromatic aldehyde group.
