9-(1-methyl-1H-imidazol-5-yl)-3,3,6,6-tetramethyl-3,4,6,7,9,10-hexahydro-2H,5H-acridine-1,8-dione 在
silica gel 、 sodium nitrite 作用下,
以
二氯甲烷 为溶剂,
反应 5.5h,
以53%的产率得到9-(1-methyl-1H-imidazol-5-yl)-3,3,6,6-tetramethyl-3,4,6,7-tetrahydro-2H,5H-acridine-1,8-dione