1,2-环己二酮

(Phenylcarbonylmethylene)triphenylphosphorane

1-hydroxy-3-phenyl-2-oxabicyclo[4.3.0]nonane

2-(1-Methylsulfanyl-2-oxo-2-phenyl-ethyl)-cyclohexanone

ethyl 2-oxo-1-phenacylcyclohexane-1-carboxylate