3-[(E)-N-(3-fluoroanilino)-C-methylcarbonimidoyl]-6-[[3-[(E)-N-(3-fluoroanilino)-C-methylcarbonimidoyl]-4-hydroxy-2-oxochromen-6-yl]methyl]-4-hydroxychromen-2-one 在
溶剂黄146 作用下,
反应 4.0h,
以66%的产率得到8,8'-methylenebis(2-(3-fluorophenyl)-3-methylchromeno[4,3-c]pyrazol-4(2H)-one)