Water → HCID 178434968, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (E)-N-(2-chloro-6-(trifluoromethyl)phenyl)-2-(4-(1-(4-(trifluoromethoxy)-phenyl)-1H-1,2,4-triazol-3-yl)benzylidene)hydrazinecarbothioamide (111 mg, 0.19 mmol) in butanone (2 mL) was added chloroacetone (0.02 mL, 0.27 mmol) and triethylamine (0.05 mL, 0.38 mmol), and the reaction was stirred at 75° C. for 16 hours. The mixture was allowed to cool to room temperature, transferred to a separatory funnel containing water (5 mL), and was extracted twice with dichloromethane. The organic extracts were filtered through a phase separator, adsorbed onto silica gel, and purified by flash chromatography (0-20% ethyl acetate/B, where B=1:1 dichloromethane/hexanes). The title compound was isolated as a yellow solid (60.5 mg, 50%): mp 97° C. (dec); 1H NMR (400 MHz, CDCl3) δ 9.72-9.57 (m, 1H), 8.58 (s, 1H), 8.24 (d, J=8.4 Hz, 2H), 7.88-7.72 (m, 4H), 7.56 (dt, J=18.3, 5.8 Hz, 2H), 7.40 (d, J=8.3 Hz, 2H), 7.09 (t, J=8.0 Hz, 1H), 3.49 (d, J=13.3 Hz, 1H), 3.35 (m, 2H), 1.86 (d, J=14.0 Hz, 3H); 19F NMR (376 MHz, CDCl3) δ−58.01, −62.05, −62.22; ESIMS m/z 642 (M+H).

Provenance & Evidence