甲醛

(3-(dibromomethylene)penta-1,4-diyn-1-yl)benzene

(Z)-1-(tert-butyldimethylsilyloxy)-4-bromo-7-phenyl-4-heptene-2,6-diyne

1-(tert-butyldiphenylsilanyloxy)-7-phenyl-2,4,6-heptatriyne

苯丙炔醛