1,3-Benzodioxole

1,3-Benzodioxole (1,2-methylenedioxybenzene) is an organic compound with the formula C$−3$H$−1$O$6$CH$4$. The compound is classified as benzene derivative and a heterocyclic compound containing the methylenedioxy functional group. It is a colorless liquid.

Although benzodioxole is not particularly important, many related compounds containing the methylenedioxyphenyl group are bioactive, and thus are found in pesticides and pharmaceuticals.

Preparation
1,3-Benzodioxole can be synthesized from catechol with disubstituted halomethanes.