Catalytic effect of crown ethers in the bromination of 2-alkyl-1,3-dioxacyclanes was written by Kotlyar, S. A.;Pluzhnik-Gladyr, S. M.. And the article was included in Russian Journal of General Chemistry (Translation of Zhurnal Obshchei Khimii) in 1998.Product Details of 4360-63-8 This article mentions the following:
Bromination of 2-alkyl-1,3-dioxacyclanes (I; R = H, Me; n = 0, 1, 2) with mol. bromine in the presence of crown ethers in benzene (chloroform) results, regardless of the acetal ring size, in exclusive formation of II (same R, n) in nearly quant. yields. The use of crown ethers allows the bromination to be accomplished at room temperature In the experiment, the researchers used many compounds, for example, 2-Bromomethyl-1,3-dioxolane (cas: 4360-63-8Product Details of 4360-63-8).
2-Bromomethyl-1,3-dioxolane (cas: 4360-63-8) belongs to dioxole derivatives. 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.Product Details of 4360-63-8
Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem