試題詳解

18. p-Methoxybenzaldehyde can be prepared from anisole using the Gatterman-Koch formylation. What mixture of reagents is necessary for this process?
(A) CO, HCl, AlCl₃, CuCl
(B) CO, SO₃, H₂SO₄
(C) CO₂, HCl, AlCl₃
(D) CO₂, SO₃, H₂SO₄
(E) CO₂, HNO₃, H₂SO₄