6,6-dimethylheptane-2,5-dione

1-hydroxy-3,3-dimethylbutan-2-one

3-乙氧基羰基-1-叔丁基戊烷-1,4-二酮

1-(4-氯苯基)-3,3-二甲基-2-丁酮

3,3-二甲基-1-甲硫基丁烷-2-酮