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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 4479Generated: October 28, 2026

6,7-Methylenedioxyoxindole → 5H-[1,3]dioxolo[4,5-f]indole

https://huagongshe.com/reaction/4479

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6,7-MethylenedioxyoxindoleHCID 21282011—
Reactant4,5-MethylenedioxyoxindoleHCID 21282023—
Reactant5,6-MethylenedioxyoxindoleHCID 21282101—
ReactantMethyl 2-(6-nitrobenzo[d][1,3]dioxol-5-yl)acetateHCID 21282102—
ReactantMethyl 2-nitromethylenedioxyphenylacetateHCID 70406732—
Product5H-[1,3]dioxolo[4,5-f]indoleHCID 260797—

Reaction Steps

5,6-Methylenedioxyoxindole can be prepared via the reduction of methyl 2-nitro-4,5-methylenedioxyphenylacetate according to the procedure of McEvoy et al., J. Org. Chem., 38, 3350 (1973). By a similar procedure, starting with the appropriate methyl 2-nitromethylenedioxyphenylacetate, 4,5-methylenedioxyoxindole and 6,7-methylenedioxyoxindole are prepared.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04725616
Source datasetuspto-grants-1988_02
ORD IDord-3ed5c8b0016f4432bfed93da605fb3ce
Source noteuspto-grants-1988_02