Water → HCID 68711366, compound

Participants

Reaction Steps

(4-Amino-2-methyl-6-nitro-phenyl)-carbamic acid ethyl ester (0.50 g) and 4-trifluoromethyl-benzaldehyde (0.29 mL) were dissolved in ethanol (10 mL) and refluxed for 16 h. The reaction mixture was poured into water (75 mL) and the precipitate collected by filtration. Sodium cyanoborohydride (0.3 g) and acetic acid (0.5 mL) were added to the precipitate dispersed in methanol (10 mL) and stirred for 60 minutes. The reaction mixture was filtered, water (50 mL) was added and the organic solvent was removed in vacuo. The product was allowed to precipitate at 25° C. and collected by filtration and washed with water (100 mL) to furnish 0.47 g (75% yield) of the title compound as a yellow solid. LC-MS (m/z) 398 (MH+); tR=3.18, (UV, ELSD) 86%, 94%. 1H NMR (500 MHz, DMSO-d6): 1.20 (1,3H), 2.10 (s, 3H), 4.05 (m, 2H), 4.45 (m, 2H), 6.75 (m, 1H), 6.90 (m, 1H), 7.55 (m, 2H), 7.73 (m, 2H), 8.75 (s, 1H).

Provenance & Evidence