N-[3-(4-chlorophenyl)-7,9-dimethyl-4,5-dioxo-5a,6,9,9a-tetrahydrobenzo[g][1]benzofuran-6-yl]acetamide 在
silica gel 作用下,
生成
7,9-dimethyl-3-(4-chlorophenyl)naphtho[1,2-b]furan-4,5-dione 、
7,9-dimethyl-3-(4-chlorophenyl)-6-acetamidonaphtho[1,2-b]furan-4,5-dione