Sulfuryl chloride → HCID 17862337, compound

Participants

Reaction Steps

Sulfuryl chloride (0.16 g, 1.2 mmol) was added to a solution of N-hexyl-3-(2,6-dichloro-4-trifluoromethylphenyloxy)-5-methylpyrazole-1-carboxamide (0.44 g, 1.0 mmol) in acetic acid (5 ml), and the mixture was stirred at room temperature for 4 hours. After completion of the reaction, the reaction mixture was poured into ice water and extracted with ethyl acetate (10 ml×3). An organic layer was washed with water, dried over anhydrous magnesium sulfate and filtered to remove a desiccant. The solvent was distilled off from the filtrate under reduced pressure. The resultant crude product was purified with a silica gel column (ethyl acetate/hexane 1/10), to give a white solid of N-hexyl-4-chloro-3-(2,6-dichloro-4-trifluoromethylphenyloxy)-5-methylpyrazole-1-carboxamide (0.40 g, yield: 84.8%). mp: 86-88° C.; 1H-NMR (CDCl3, TMS, ppm): δ 0.88 (t, J=6.8 Hz, 3H), 1.26 (m, 6H), 1.40-1.60 (m, 2H), 2.62 (s, 3H), 3.15-3.35 (m, 2H), 6.50-6.70 (m, 1H), 7.67 (s, 2H).

Provenance & Evidence