Bromine → HCID 86697422, compound

Participants

Reaction Steps

Sodium acetate [127-09-3] (457.6 mg, 5.6 mmol) was added to a solution of N-(2-methoxyethyl)pyrazolo[1,5-a]pyrimidin-5-amine (706.4 mg, 3.7 mmol) in glacial acetic acid (40 mL) and allowed to stir at ambient temperature until all of the solid had dissolved. Bromine [7726-95-6] (0.2 mL, 3.7 mmol) was added into the ambient temperature, buffered acetic acid reaction solution over 2 minutes, then the reaction solution was slowly poured into stirring water (1 L). The pH was increased by the addition of solid sodium bicarbonate until the pH of the supernatant was determined to be approximately 8 by pH paper. Precipitated product was isolated by filtration, the filter cake washed with water, and allowed to dry to afford 819.6 mg of white powder. LRMS (ESI) m/z 271.0/273.0 [(M+H)]+, calc'd for C9H11BrN4O: 271.12.

Provenance & Evidence