2-diethylboranylethynyl(diethyl)borane

1-phenyl-4-[2-(4-phenylphenyl)ethynyl]benzene

1,2,3-trimethoxy-5-[2-(3,4,5-trimethoxyphenyl)ethynyl]benzene

1-正丁基-4-[(4-正丁基苯基)乙炔基]苯

二(4-溴苯基)乙炔