4'-ethynylbenzo-18-crown-6 、
[4,5-bis[2-[4,5-bis[2-(3,5-ditert-butylphenyl)ethynyl]-2-methoxyphenyl]ethynyl]-2-methoxyphenyl] trifluoromethanesulfonate 在
bis-triphenylphosphine-palladium(II) chloride
copper(l) iodide 、
三乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以67%的产率得到20-[2-[4,5-Bis[2-[4,5-bis[2-(3,5-ditert-butylphenyl)ethynyl]-2-methoxyphenyl]ethynyl]-2-methoxyphenyl]ethynyl]-2,5,8,11,14,17-hexaoxabicyclo[16.4.0]docosa-1(18),19,21-triene