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ChemicalBook CAS DataBase List 4-Methoxy-2-nitrobenzoic acid
33844-21-2

4-Methoxy-2-nitrobenzoic acid synthesis

13synthesis methods
-

Yield: 80%

Reaction Conditions:

with hydrogenchloride;potassium permanganate in water

Steps:

44.1 Step 1
Step 1 4-Methoxy-2-nitrotoluene (3.6 g, 18 mmol) and KMnO4 (10 g, 63 mmol) in water (200 mL) were refluxed for 24 h. The reaction was cooled to ambient temperature and the solids were removed by filtration. The aqueous phase was made acidic (pH 2) by the addition of 1N HCl and was extracted with CHCl3 (3*50 mL). The combined organic extracts were dried (MgSO4) and filtered. The precipitate which formed upon concentration under reduced pressure was collected to give 4-methoxy-2-nitrobenzoic acid (80% yield).

References:

Merck & Co., Inc. US5665719, 1997, A

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