In organic chemistry, ethylenedioxy is a functional group with the structural formula . It is often attached to an aromatic ring.
Examples: 3,4-Ethylenedioxythiophene, a precursor to conductive polymer 3,4-Ethylenedioxy-N-methylamphetamine, an analogue of MDMA with similar effects. (ethylenedioxy)dimethanol (), a biocidal formaldehyde releaser.
See also 1,4-Benzodioxan 1,4-Benzodioxine
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