2-(4-methylphenyl)-1-oxidopyrazin-1-ium

ethyl 2-[3-(4-methylphenyl)prop-2-ynoxy]acetate

1-[3-(4-methylphenyl)prop-2-ynoxy]-4-phenylbut-3-yn-2-one

trimethyl-(4-methylphenyl)stannane

1-环丙基-4-甲基苯