Dimethylformamide → HCID 178487445, compound

Participants

Reaction Conditions

Reaction Steps

Compound 7 (1.0 g, 4.4 mmol) was dissolved in 10 mL of dimethylformamide, aminoguanidine hydrochloride salt (723 mg, 6.5 mmol) and diisopropyl ethylamine (1.14 mL, 6.5 mmol) were added and the mixture stirred at 50° C. for 18 hours. The mixture was then concentrated and to the resulting residue was added 2M aqueous sodium hydroxide solution (10 mL). The mixture was stirred at 50° C., for 18 hours and then cooled to room temperature. The resulting mixture was then neutralized with aqueous 1N HCl and the precipitate (product) collected to give 5-amino-4-(7-methoxy-4-methylnaphthalen-1-yl)-4H-1,2,4-triazole-3-thiol (8). (1.14 mg, 91% yield)

Provenance & Evidence