2-Aminothiophenol → HCID 178509260, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-aminobenzenethiol (100 mg, 0.8 mmol) and 3-aminopyrazole-4-carbonitrile (86 mg, 0.8 mmol) in 3 g of polyphosphoric acid was heated at 200° C. for 3 hours. The mixture was then poured into ice water and was neutralized with conc. Ammonium hydroxide solution. The resulting yellow solid was isolated by filtration and washed with cold water to yield the title compound (70 mg, 40%). MS (m/z, ES+): 217 (M+1, 100%); 1H NMR (300 MHz, ppm, DMSO-d6): δ 7.97 (d, 3J=7.8 Hz, 1H), 7.88 (s, 1H), 7.84 (d, 3J=8.0 Hz, 1H), 7.42 (m, 1H), 7.29 (m, 1H), 6.3 (br s, 2H).

Provenance & Evidence