Can you do 2-step synthesis for butanone from but-2-ene

Answer 1

You could either use oxymercuration((1) HgOAc2, H2O 2)NaBH4) or hydroboration(BH3/THF/NaOH/H2O to put an OH on carbons 2 or 3, then oxidize using either a weak or strong oxidizing agent. The reason that either would work is because the OH is a second degree so it can only be oxidized to a ketone.