Hydrochloric Acid → 3-methyl-N-(2-methylphenoxyacetyl)anthranilic acid

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Reaction Steps

3-Methylanthranilic acid 1.0 g (6 mmol) was dissolved in 10% aqueous sodium hydroxide solution 27 ml and to this soulution, 2-methylphenoxyacetyl chloride 1.3 g (7.3 mmol) was added dropwise at 0° C. The resulting solution was stirred at room temperature for 5 minutes and acidified with 10% hydrochloric acid solution. Deposited crystals were collected by filtration, washed with hot water and recrystallized from ethanol to obtain 3-methyl-N-(2-methylphenoxyacetyl)anthranilic acid (melting point: 133° to 136° C.) 1.7 g (yield: 83%).

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