2 2-dimethyl-1 3-dioxolane July 8, 2019 16 32 64 128 2 2-dimethyl-1 3-dioxolane-4-methanol 2 2 dimethyl 1 3 dioxolane 2 2-dimethyl-1 3-dioxolane-4-carboxaldehyde 2 2-dimethyl-1 3-dioxolane nmr 2 4 dimethyl 1 3 dioxolane