反应详情

The title compound was prepared from 2-(trifluoromethyl)-phenylhydrazine (1.41 g, 8.0 mmol) and 4,4-dimethyl-3-oxopentanenitrile (1.0 g, 8.0 mmol) using the procedure in Example 161A Step 3 to give 3-tert-butyl-1-(2-(trifluoromethyl)phenyl)-1H-pyrazol-5-amine (1.45 g, 5.12 mmol, 64%). 1H NMR (300 MHz, DMSO-d6) δ 7.86 (d, 1H), 7.75 (t, 1H), 7.65 (t, 1H), 7.49 (d, 1H), 5.27 (s, 1H), 4.97 (s, 1H), 1.18 (s, 9H); LC-MS (ESI) m/z 284 (M+H)+.