3,5-Dinitrobenzoyl chloride → 7-(3,5-Dinitrobenzamido)-1-(4-methyl-1-piperazinyl)-naphthalene

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The title product was prepared following the procedure of example 3 from 7-amino-1-(4-methyl-1-piperazinyl)-naphthalene (0.15 g, 0.622 mmol) and triethylamine (0.09 mL, 0.68 mmol) and 3,5-dinitrobenzoyl chloride (0.158 g, 0.684 mmol) in acetonitrile (10 mL) with overnight stirring at room temperature. The product was purified using chromatography and recrystallization from acetonitrile to yield 0.17 g (63%) of the title compound: mp 254°-256° C. Analysis calculated for C22H21N5O5 : C, 60.68; H, 4.86; N, 16.08. Found: C, 60.59; H, 4.73; N, 15.88.

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