3-cyclopropyl-1-{3-[(4-cyclopropyl-4,5-dihydro-5-oxo-1H-tetrazol-1-yl)methyl)-2,4-dichlorophenyl}-2-ethoxymethylenepropan-1,3-dione 、
盐酸羟胺 、
sodium acetate 在
乙酸乙酯 、
水 、
magnesium sulfate 、 silica 、
正己烷 作用下,
以
乙醇 为溶剂,
反应 6.0h,
以to obtain the objective 5-cyclopropyl-4-{3-[(4-cyclopropyl-4,5-dihydro-5-oxo-1H-tetrazol-1-yl)methyl]-2,4-dichlorobenzoyl}isoxazole (2.37 g, 84% yield from 3-cyclopropyl-1-{3-[(4-cyclopropyl-4,5-dihydro-5-oxo-1H-tetrazol-1-yl)methyl]-2,4-dichlorophenyl}propan-1,3-dione的产率得到5-cyclopropyl-4-{3[(4cyclopropyl-4,5-dihydro-5-oxo-1H-tetrazol-1-yl)methyl]-2,4-dichlorobenzoyl}isoxazole