3-methyl-4-(4-chlorophenyl)oxazin-2,6-dione 、
5-(4-三氟甲基苯基)-环己烷-1,3-二酮 在
sodium hydride 作用下,
生成 5-hydroxy-1-methyl-2-(4-chlorophenyl)-7-(4-trifluoromethylphenyl)-1,4-dihydroquinolin-4-one 、 1-methyl-2-(4-chlorophenyl)-7-(4-trifluoromethylphenyl)-1,4,5,6,7,8-hexahydroquinolin-4,5-dione