丙酮过氧化物

4,4-dimethyl-1-phenyl-2,3,5,6,11-pentaoxabicyclo[5.3.1]undecane

3,6-di-p-tolyl-1,2,4,5-tetraoxane

5,5-dimethoxy-1-phenylpentan-1-one

4-benzoylbutanal dimethylacetal