3-tert-butyl-5,5-dimethylhex-3-en-1-yne

5,5-dimethyl-3-propan-2-ylhex-3-en-1-yne

5-tert-butyl-7,7-dimethyloct-5-en-3-yn-2-ol

7,7-dimethyl-5-propan-2-yloct-5-en-3-yn-2-ol

5-tert-butyl-7,7-dimethylocta-3,5-dien-2-ol