反应详情

This compounds was synthesised in the same manner as described above. 6-Ethyl-7-hydroxy-3-phenyl-chromen-4-one (0.29 g, 1.1 mmol), hydrazine hydrate (4 ml), ethanol (20 ml). The crude product was columned to give 4-Ethyl-6-(4-phenyl-1H-pyrazol-3-yl)-benzene-1,3-diol as a off white solid (0.23 g, 74.73%); Rf 0.7 Cf SM 0.9 ethyl acetate/hexane (70/30).

1. customThis compounds was synthesised in the same manner