Question

In the following sequence of reactions, products (B) to (E) are formed

In the formation of (B) to (C) and (D) to (E), respectively, which statement is correct ?

• A. Both proceed via $S{N}^2$ mechanism
• B. Both proceed via E2 mechanism
• C. B to C proceeds via $E^2$ and D to E via $S{N}^2$ mechanism
• D. B to C proceeds via $S{N}^2$ and D to E via E2 mechanism

Answer 1

The correct option is C B to C proceeds via $E^2$ and D to E via $S{N}^2$ mechanism

B to C proceeds via $E_2$ due to steric hindrance from isopropyl group and D to E via $S_{N}2$ mechanism as it is unhindered alkyl iodide.