2-氯-5,5-二乙基-1,3-环己二酮

4,4-dimethyl-2-oxocyclopentane-1-carboxylic acid

4,4-dimethyl-2-oxo-N-prop-2-enylcyclopentane-1-carboxamide

2-chloro-3-hydroxy-5,5-dimethylcyclohex-2-en-1-one

2,2-二氟-5,5-二甲基-1,3-环己烷二酮