1,3-Benzodioxole (1,2-methylenedioxybenzene) is an organic compound with the formula C6H4O2CH2. The compound is classified as benzene derivative and a heterocyclic compound containing the methylenedioxy functional group. It is a colorless liquid.
Although benzodioxozole is not particularly important, many related compounds containing the methylenedioxyphenyl group are bioactive, and thus are found in pesticides and pharmaceuticals.
1,3-Benzodioxole can be synthesized from catechol with disubstituted halomethanes.