2-(2-丁炔-1-基氧基)乙醇

4-but-3-en-1-ynyl-2,5-dimethylpiperidin-4-ol

2,4-dichloro-1-dichlorophosphorylbut-2-ene

4-bromobut-1-en-3-yne

buta-1,2-dienyl(tripropyl)stannane