methyl 4-bromo-2,3-dihydro-5-hydroxy-6-methyl-3-(phenoxycarbonyloxymethyl)benzofuran-2-carboxylate 在
ammonium cerium(IV) nitrate 作用下,
以
乙腈 为溶剂,
反应 0.25h,
以80%的产率得到methyl 3-(2-bromo-4-methyl-3,6-dioxo-1,4-cyclohexadienyl)-2-hydroxy-4-(phenoxycarbonyloxy)butyrate