7-bromo-9,9-diethyl-9H-fluorene-2,4-dicarbaldehyde   、                                                                                      
1,2-bis(9,9-diethyl-9H-fluoren-2-yl)ethane-1,2-dione                                                                                                                                                              在
                                                                                                                                                                                 ammonium acetate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
溶剂黄146                                                                                  为溶剂,
                                                                                                                                                    反应 24.0h,
                                                                                                                以76%的产率得到2,2'-(7-bromo-9,9-diethyl-9H-fluorene-2,4-diyl)bis(4,5-bis(9,9-diethyl-9H-fluoren-2-yl)-1H-imidazole)