4-Methyl-3-nitroaniline → N-(4-Methyl-3-nitrophenyl)-3-(trifluoromethyl)benzamide

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A mixture of 3-trifluoromethylbenzoyl chloride (9.9 ml), 3-nitro-4-methylaniline (10 g) and pyridine (100 ml) was stirred and heated to 80° C. for 2 hours. The reaction mixture was evaporated and the residue was triturated under 2N aqueous hydrochloric acid solution. The solid so obtained was isolated, washed in turn with a saturated aqueous sodium bicarbonate solution, water and isohexane and dried under vacuum at 55° C. to give N-(4-methyl-3-nitrophenyl)-3-trifluoromethylbenzamide as a solid (21.9 g); NMR Spectrum: (DMSOd6) 7.49 (d, 1H), 7.78 (m, 1H), 7.99 (m, 2H), 8.27 (m, 2H), 8.51 (s, 1H), 10.77 (s, 1H); Mass Spectrum: M−H− 23.

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