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Dioxoles are five membered heterocyclic compounds containing two oxygen atoms. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. Dioxole functionalized metal-organic frameworks have also been recently reported.
Dioxolanes (also known as Dihydrodioxole) belong to that class of compounds that bear a dioxalane moiety which are five-membered heterocyclic acetals (that are saturated derivatives of dioxoles). They are related to tetrahydrofuran by interchange of one oxygen atom for another CH2 group. They exist in two isomeric forms namely 1,2-Dioxolane and 1,3-Dioxolane. In organic synthesis, dioxalanes are routinely synthesised as protecting groups for diols. They survive a variety of chemical conditions such as alkaline conditions and are inert to organometallic reagents. Dioxolanes are used as a solvent and as a monomer for the production of polyacetals which are very high molecular weight compounds having less toxicity. Being strong and ridged, this polymer finds use as a substitute for metals in many engineering applications where low-friction properties are important. Dioxolanes are also used as stabilizer for halogenated organic solvents and are an excellent solvent for paints and coatings.