2-Hydrazinoethanol → HCID 136049264, compound

Participants

Reaction Steps

3-(4-Bromo-phenyl)-6-chloro-7-hydroxy-chromen-4-one (0.1 g, 0.28 mmol), and 2-Hydrazino-ethanol (0.04 g) were suspended in ethanol (10 ml) and refluxed for 1 hr. 4-[4-(4-Bromo-phenyl)-1-(2-hydroxy-ethyl)-1H-pyrazol-3-yl]-6-chloro-benzene-1,3-diol precipitated out on quenching as a white solid (0.09 g, 78.8%).

Provenance & Evidence