3,6-dibromo-2,2,7,7-tetramethyloct-4-yne

3,3-dimethylbut-1-ynylsulfanyl(trimethyl)silane

4,4-dimethylpent-2-ynenitrile

2,2-dimethyl-5-phenylhex-4-en-3-one

2,2,6,6-tetramethylheptan-3-one