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

Gatterman-Koch Formylation

A chemical reaction that introduces an aldehyde group into aromatic compounds using carbon monoxide, hydrochloric acid, and a Lewis acid catalyst.

Anisole

An organic compound consisting of a methoxybenzene group; used as a precursor in the synthesis of perfumes, pharmaceuticals, and pesticides.

Reagents

Substances or compounds that are added to a system in order to bring about a chemical reaction or are involved in chemical reactions.