4-甲基-4(对甲苯基)-2-戊酮

甲苯

2,2-二甲基-5-(1-甲基亚乙基)-1,3-二噁烷-4,6-二酮

5-(2-p-tolylpropane)-(2,2)-dimethyl-(1,3)-dioxane-4,6-dione

(1-methyl-1-p-tolyl-ethyl)-malonic acid