N,N-dimethyl-4-nitro-2-(trifluoromethyl)benzamide → 4-Amino-N,N-dimethyl-2-trifluoromethylbenzamide

To a solution of N,N-dimethyl-4-nitro-2-(trifluoromethyl)benzamide (10 g, 25.2 mmol) in MeOH (100 mL) stirred under N2 at 20° C. was added Pd/C (1 g, 9.40 mmol) in one charge. The reaction mixture stirred under a H2 atmosphere at 20° C. for 12 h. The mixture was filtered, and the filtrate was concentrated in vacuo to give the desired product 4-amino-N,N-dimethyl-2-(trifluoromethyl)benzamide (8.3 g, 23.59 mmol, 94.0% yield). TLC (DCM/MeOH=10:1, Rf=0.4): 1H NMR (400 MHz, CDCl3) δ 7.07 (d, J=8.2 Hz, 1H), 6.90 (s, 1H), 6.79 (d, J=8.2 Hz, 1H), 3.95 (br. s., 2H), 3.08 (s, 3H), 2.80 (s, 3H); ES-LCMS m/z 233.0 (M+H).