3-tert-butylcyclopent-2-en-1-one

1,1,2,3,5,6-hexamethyl-4-neopentyl-2,4-cyclohexadiene

1,1,2,3,5,6-hexamethyl-4-neopentyl-2,5-cyclohexadiene

4,4-dimethyl-1,3-diphenylpentan-1-one

(E)-4,4-dimethyl-1,3-diphenylpent-1-en-3-ol