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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1510899Generated: November 4, 2026

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

https://huagongshe.com/reaction/1510899

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 numberUS08212040B2
Source datasetuspto-grants-2012_07
ORD IDord-18dd95413a694b33b5bb47d57e007e5c
Source noteuspto-grants-2012_07