Question

What will be the order of reactivity of the following carbonyl compounds with Grignard’s reagent?

• A. \( \text{I}>\text{II}>\text{III}>\text{IV} \)
• B. \( \text{IV}>\text{III}>\text{II}>\text{I} \)
• C. \( \text{II}>\text{I}>\text{III}>\text{IV} \)
• D. \( \text{III}>\text{II}>\text{I}>\text{IV} \)

Hint:

Carbonyl compounds with less steric hindrance and more electron-deficient carbonyl carbon react more readily with Grignard reagents.

Answer 1

The Correct Option is A

The reactivity of carbonyl compounds with Grignard’s reagent depends on the steric and electronic factors. Compound I is more reactive due to the less hindered carbonyl group.