Sodium Hydroxide → 2-(3-Benzyloxy-5-methoxyphenyl)-6,7-methylenedioxyquinolin-4-one

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Reaction Steps

Into a suspension of 164 (3.33 g, 0.0079 mmol) in 200 mL of 1,4-dioxane was added sodium hydroxide (2.50 g, 0.0635 mmol). The mixture was refluxed for 24 h. After the reaction mixture was evaporated, 100 mL of 10% ammonium chloride solution was added. The mixture was stirred for 12 h, and then the precipitate was collected and washed with water and acetone.

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