Hydrazine hydrate (1:1) → HCID 136049335, compound

Participants

Reaction Steps

This compounds was synthesised in the same manner as described above. 3-(4-Bromo-phenyl)-6-chloro-7-hydroxy-2-methyl-chromen-4-one (0.5 g, 1.4 mmol), Hydrazine hydrate (5 ml). 4-[4-(4-Bromo-phenyl)-5-methyl-1H-pyrazol-3-yl]-6-chloro-benzene-1,3-diol precipitated out as a pale orange solid (0.08 g, 63.7%); Rf 0.48 cf SM 0.8 [ethyl acetate/petroleum ether 40–60° C. (80/20)].

Provenance & Evidence