3-Methyl-1-(2,2,2-trifluorethoxy)-1-cyclobuten

磷酸三（2,2,2-三氟乙基）酯

2,4-二甲基-1-戊烯-3-酮

2-(2,2,2-trifluoroethoxy)-2,4-dimethyl-3-pentanon

1-(2,2,2-trifluoroethoxy)-2,4-dimethyl-3-pentanon