2-tert-butyl-3,3-dimethyl-pent-1-ene

2-isopropyl-3,3-dimethyl-hex-1-ene

2-tert-butyl-3,4-dimethyl-pent-1-ene

3-ethyl-2-tert-butyl-pent-1-ene

2-tert-butyl-3-methyl-hex-1-ene