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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1070994Generated: November 1, 2026

5-Nitro-2,3-dihydro-1-benzofuran → 2,3-Dihydro-1-benzofuran-5-amine

https://huagongshe.com/reaction/1070994

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Nitro-2,3-dihydro-1-benzofuranHCID 21816585—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
SolventDichloromethaneHCID 6344—
Product2,3-Dihydro-1-benzofuran-5-amineHCID 384110297.3%

Reaction Steps

To a suspension of 10.3 g (62.37 mmol) of 5-nitro-2,3-dihydrobenzofuran in 50 mL of MeOH and 10 mL of dichloromethane was added 350 mg of 10% palladium on carbon and the mixture was placed under 55 psi of hydrogen gas. Hydrogen gas uptake was evident during the first 30 minutes. After 18 hours, the mixture was then filtered through diatomaceous earth and concentrated to afford 8.2 g of 2,3-dihydrobenzofuran-5-ylamine as a gray solid which was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06903215B2
Source datasetuspto-grants-2005_06
ORD IDord-1d79976dfc1d4e848d3bf14f30832fa0
Source noteuspto-grants-2005_06