Hydrochloric Acid → HCID 53673974, compound

Participants

Reaction Conditions

Reaction Steps

3-Nitro-ortho-xylene (1.77 ml, 13.23 mmol, 1.0 eq.) was combined with dimethylformamide dimethyl acetal (2.11 ml, 15.88 mmol, 1.2 eq.) dimethylformamide (7.35 ml, 1.8M) and pyrrolidine (1.32 ml, 15.88 mmol, 1.2 eq.) and heated at 110° C. for 8 hours. The reaction was then cooled to room temperature and concentrated. The residue was dissolved in dimethylformamide (7.35 ml, 1.8M) and treated at room temperature with a solution of semicarbazide-hydrochloride (1.55 g, 13.89 mmol, 1.05 eq.) in concentrated hydrochloric acid (1.2 ml, 14.55 mmol, 1.1 eq.) and water (16.5 ml, 0.8M). The mixture was stirred at room temperature for 30 minutes, cooled to 0° C. and filtered. The precipitate was washed with water (30 ml), cold ethanol (15 ml) and ethyl ether (25 ml) and then dried in vacuo to provide the title A compound (2.44 g).

Provenance & Evidence