The Dioxole compound, cas is 37830-90-3 name is 4,5-Dimethyl-1,3-dioxol-2-one, mainly used in chemical industry, its synthesis route is as follows.
PREPARATION 1 4-Bromomethyl-5-methyl-2-oxo-1,3-dioxole To a stirred solution of 3.0 g of 4,5-dimethyl-2-oxo-1,3-dioxole in 100 ml of carbon tetrachloride was added 4.63 g of N-bromosuccinimide. The resulting solution was heated under reflux and irradiated for 15 minutes. The reaction mixture was cooled to 0¡ã-5¡ã C., filtered and evaporated to give the title product. The NMR spectrum (CDCl3) showed absorptions at 2.05 (5percent of starting material), 2.18 (3H, s), 4.30 (2H, s) and 4.35 (5percent of dibromo compound) ppm downfield from tetramethylsilane. The infrared spectrum showed an absorption at 5.49 microns.
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Reference£º
Patent; Pfizer Inc.; US4448732; (1984); A;,
1,3-Benzodioxole – Wikipedia
Dioxole | C3H4O2 – PubChem