4-[1-(2-Hydroxy-phenyl)-meth-(Z)-ylidene]-2-[2-(4-isopropyl-3-methyl-phenoxy)-acetyl]-5-methyl-2,4-dihydro-pyrazol-3-one 在
溴 作用下,
以
溶剂黄146 为溶剂,
以78%的产率得到4-Bromo-4-[bromo-(2-hydroxy-phenyl)-methyl]-2-[2-(4-isopropyl-3-methyl-phenoxy)-acetyl]-5-methyl-2,4-dihydro-pyrazol-3-one