(S)-2,2'-diethynyl-9,9'-spirobifluorene 、 2,6-diethyl-4,4-difluoro-1,3,5,7-tetramethyl-8-(4-iodophenyl)-4-bora-3a,4a-diaza-s-indacene 在
四(三苯基膦)钯 、
三乙胺 作用下,
以
苯 为溶剂,
以30%的产率得到5,11-Diethyl-8-[4-[2-(2-ethynyl-9,9'-spirobi[fluorene]-2'-yl)ethynyl]phenyl]-2,2-difluoro-4,6,10,12-tetramethyl-3-aza-1-azonia-2-boranuidatricyclo[7.3.0.03,7]dodeca-1(12),4,6,8,10-pentaene