1-ethyl-2,3,4,10,10a-pentaaza-cyclopenta[b]fluoren-9-one 、
苯胺 在
Dichloromethane ethyl acetate methanol 作用下,
以
甲苯 为溶剂,
反应 4.0h,
以affording 11 (231 mg, 90%) as orange solid in diastereoisomeric ratio 1:1的产率得到[1-ethyl-2,3,4,10,10a-pentaaza-cyclopenta[b]fluoren-9-ylidene]-phenyl-amine