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ChemicalBook CAS DataBase List Methyl 5-formyl-2-methoxybenzoate
78515-16-9

Methyl 5-formyl-2-methoxybenzoate synthesis

7synthesis methods
-

Yield:78515-16-9 98%

Reaction Conditions:

Stage #1: methyl-5-formyl-2-hydroxybenzoatewith potassium carbonate in N,N-dimethyl-formamide at 80; for 0.5 h;
Stage #2: methyl iodide in N,N-dimethyl-formamide at 80; for 6 h;

Steps:

8.1 Step 1: Preparation of methyl 5-formyl-2-methoxybenzoate

Dissolve methyl 5-formyl-2-hydroxybenzoate (500.0 mg, 2.8 mmol) and potassium carbonate (1.2 g, 8.3 mmol) in DMF (10 mL), heat to 80 ° C for 0.5 hour, and then add methyl iodide (787.9 mg, 5.6 mmol) and maintained at 80 ° C for 6 hours. The reaction solution was cooled to room temperature, an appropriate amount of water was added, and extraction was performed 3 times with ethyl acetate. The organic phases were combined and washed with a saturated sodium chloride solution, dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated to give the title compound (530.0 mg, yield: 98%) in this step

References:

CN110724075,2020,A Location in patent:Paragraph 0283; 0284; 0285; 0286

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