Hydrazine, ethyl-, ethanedioate (1:1) → HCID 22065117, compound

Participants

Reaction Conditions

Reaction Steps

Methyl-N-{[3-methyl-4-bromo-5-(4-trifluoromethoxyphenyl)-2-thienyl]-carbonyl}-2-fluoro-6-chlorobenzenecarbimidothioate (0.85 g, 1.5 mmol) and ethylhydrazine oxalate (0.90 g, 6 mmol) were combined in toluene (5 mL) and stirred 64 h at 25° C. and heated to reflux for 18 h. The reaction mixture was diluted with ether and washed with 0.1 M hydrochloric acid and brine, dried over anhydrous magnesium sulfate and concentrated to a crude pale yellow oil. Chromatography (silica gel, 10% ethylacetatelhexane) afforded the product as a clear oil (0.250 mg, 30%): 1H NMR (CDCl3) δ 7.73 (2H, d), 7.0-7.5 (5H, m), 4.3 (2H, q), 2.40 (3H, s), 1.55 (3H, t); EI/MS 546 m/e (M+).

Provenance & Evidence