P-Methoxybenzaldehyde Can Be Prepared from Anisole Using the Gatterman-Koch Formylation

question 41

Multiple Choice

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

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