Sulfuric Acid → HCID 131718400, compound

Participants

Reaction Steps

A solution of conc. sulfuric acid (0.7 ml) in methanol (10 ml) was added to a mixture of 2-(diaminomethyleneamino)-4-(5-ureidomethylfuran-2-yl)thiazole (4.0 g) in methanol (60 ml) and the mixture was stirred for an hour at ambient temperature. The isolated precipitate was collected by filtration and the precipitate was recrystallized from an aqueous ethanol to give 2-(diaminomethyleneamino)-4-(5-ureidomethylfuran-2-yl)thiazole hemisulfate (4.26 g).

Provenance & Evidence