Sodium Bisulfate → 5,6-Diamino-1-butylpyrimidine-2,4(1H,3H)-dione

Participants

Reaction Conditions

Reaction Steps

A suspension of 6-amino-1-butyl-5-nitroso-1H-pyrimidine-2,4-dione (500 mg, 2.36 mmol) in water (8.3 mL) at 85° C. was treated with sodium hydrosulfate (1.23 g, 7.08 mmol). The reaction was stirred at 85° C. for 20 min. At this time, the reaction was cooled to 0° C. The resulting green solid was collected by filtration, washed with water, and air dried for 30 min to afford 5,6-diamino-1-butyl-1H-pyrimidine-2,4-dione (304 mg, 65%) as a pale green solid: LR-MS for C8H14N4O2 (M+H)+ at m/z=199.

Provenance & Evidence