Identify the best reagents to achieve the following

Last updated: 8/4/2022

Identify the best reagents to achieve the following transformation: 1. conc. H₂SO4, heat; 2. HBr, ROOR 1. NaOEt; 2. HBr, ROOR; 3. t-BuOK 1. NaOEt; 2. BH3 THF; 3. NaOH, H₂O2 1. conc. H₂SO4, heat; 2. HBr