(Solved): Identify the best reagents to achieve the following transformation: 1. \( \mathrm{HBr} \), ROOR; 2. ...

Identify the best reagents to achieve the following transformation: 1. \( \mathrm{HBr} \), ROOR; 2. NaOEt; 3. \( \mathrm{Hg}(\mathrm{OAc})_{2}, \mathrm{H}_{2} \mathrm{O} ; 4 \). \( \mathrm{NaBH}_{4} \) 1. conc. \( \mathrm{H}_{2} \mathrm{SO}_{4} ; \) 2. \( \mathrm{HBr} \), ROOR; 3.t-BuOK 1. \( \mathrm{HBr} ; 2 \). NaOEt; 3. BH \( \mathrm{BH}_{3} \) THF; 4. \( \mathrm{NaOH}, \mathrm{H}_{2} \mathrm{O}_{2} \) 1. HBr, ROOR; 2. NaOEt; 3. \( \mathrm{BH}_{3} \cdot \mathrm{THF} ; 4 . \mathrm{NaOH}, \mathrm{H}_{2} \mathrm{O}_{2} \)