Synthesis of 2,4-Dinitrodiphenylamine

To a reflux apparatus add 10.1 g of 2,4-dinitrochlorobenzene, 50 mL of EtOH and 9.2 mL of aniline, reflux the mixture for 30 minutes, then cool down to room temperature. Filter the mixture and wash with 3×20 mL portions of very cold EtOH. Recrystallize from hot ethanol.

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The combined compounds

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Refluxing the solution

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The recrystallized product

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