Acetylacetone → HCID 59570667, compound

Participants

Reaction Steps

(5-Bromo-3-hydrazino-pyrazin-2-yl)-carbamic acid tert-butyl ester (513 mg, 1.6 mmol) and 2,4-pentadione (0.18 mL, 1.7 mmol) in ethanol (25 mL) were heated to reflux for 45 min. The mixture was concentrated in vacuo followed by co-evaporation with ethyl acetate to give [5-bromo-3-(3,5-dimethyl-pyrazol-1-yl)-pyrazin-2-yl]-carbamic acid tert-butyl ester as the crude product.

Provenance & Evidence