7,7-dimethyloct-5-yn-1-ol

1-bromo-2-(5,5-dimethylhex-1-en-3-ynyl)benzene

(3,3-二甲基-1-丁炔)硼酸二异丙酯

3-tert-butyl-2,2,6,6-tetramethylhept-4-yn-3-ol

4,4-dimethyl-1-phenylpent-1-yn-3-one