ChemInform Abstract: Efficient Synthesis of Triazole-Containing Spiro Dilactones

3-Bromomethyl-2,8-dioxaspiro[4.4]nonane-1,6-diones were efficiently prepared from 3-ethoxycarbonyltetrahydrofuran-2-ones. Subsequent conversion of the bromomethyl group into azidomethyl one followed by click reaction with alkynes afforded the multifunctional triazole-containing spiro dilactones in almost quantitative yields.