Question

From the options given below, choose the one that helps accomplish the given (above)conversion:

• A. A: allyl bromination of propylbenzene using NBS, $h\nu$ B: E2 with a stong bulky base
• B. A: allyl bromination of propylbenzene using NBS, $h\nu$ B: treatment with $O{H}^{-}$ at 0${}^{\circ }$C
• C. A: allyl bromination of propylbenzene using NBS, $h\nu$ B: treatment with $N{H}_3$ at 0${}^{\circ }$C
• D. None of the above

Answer 1

The correct option is A

A: allyl bromination of propylbenzene using NBS, $h\nu$ B: E2 with a stong bulky base

Start by brominating at the benzyl position:


Now, treat the product from above with a very strong base in a suitable solvent with heat: