2,8-diethyl-1,3,5,7,9-pentamethyldipyrrin hydrochloride 、
difluoro (pentafluorophenyl)borane 在
Et
3N 作用下,
以
二氯甲烷 为溶剂,
以62%的产率得到(2R)-5,11-diethyl-2-fluoro-4,6,8,10,12-pentamethyl-2-(2,3,4,5,6-pentafluorophenyl)-3-aza-1-azonia-2-boranuidatricyclo[7.3.0.03,7]dodeca-1(12),4,6,8,10-pentaene