Question

What is the product of the reaction shown?

• A. I
• B. II
• C. III
• D. IV

Answer 1

The correct option is C III

First step: $PCC$ oxidizes the primary alcohol to acetaldehyde

Second step: Grignard reagent is a strong nucleophile. It undergoes nucleophilic addition reaction when it reacts with aldehyde, ester and ketone.
Grignard reagent reacts with aldehyde followed by acid workup except formaldehyde to form $2^{\circ }$ alcohol.

Third step: Neutralization of the anion forms isoproyl alcohol.
thus correct option is (c).