2-butanone can be converted to 2-butene in two steps.

Question

what reactant is used in the first step?

what reactant is used in the second step?

Answer 1

first step: reduce 2-butanone to 2-butanol with sodium borohhydride (NaBH₄)

second step: eliminate H₂O from 2-butanol with a strong acid (like H₂SO₄) and heat to make 2-butene