Dioxolane is a heterocyclic acetal with the formula (CH2)2O2CH2. It is related to tetrahydrofuran by exchanging an oxygen for the CH2 group. The isomer 1,2-dioxolane (in which the two oxygen centers are adjacent) is a peroxide. 1,3-Dioxolane is used as solvent and comonomer in polyacetal. The dioxolane-type and their hydrogenolysis can provide very valuable partially protected building blocks either for oligosaccharide syntheses or sugar transformations.
Among the heterocyclic compounds, pyridopyrazine compounds are widely used as intermediates in the preparation of advanced pharmaceutical materials with biological activity, and are the scaffolding materials that have been widely concerned by academia and industry in recent years. There are many pyridopyrazine derivatives on the market for the treatment of various pharmacological diseases.
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