2 2-dimethoxy-4-(trifluoromethyl)-1 3-dioxolane July 8, 2019 16 32 64 128 2 2 5-trimethyl-1 3-dioxane-4 6-dione 2 3-dimethoxy-1 4-naphthoquinone 2 2 2-trifluoroethyl trifluoromethanesulfonate
