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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2112073Generated: November 2, 2026

ethyl (4-amino-3-oxo-3H-isobenzofuran-1-ylidene)-acetate → Ethyl (4-amino-3-oxo-1,3-dihydro-isobenzofuran-1-yl)-acetate

https://huagongshe.com/reaction/2112073

Reaction equation

Participants

RoleNameHCIDCharge
Reactantethyl (4-amino-3-oxo-3H-isobenzofuran-1-ylidene)-acetateHCID 86606182—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
ProductEthyl (4-amino-3-oxo-1,3-dihydro-isobenzofuran-1-yl)-acetateHCID 12778359—

Reaction Steps

120 mg (0.51 mmol) ethyl (4-amino-3-oxo-3H-isobenzofuran-1-ylidene)-acetate are dissolved in 50 ml of methanol and combined with 50 mg palladium on activated charcoal (10% Pd). The reaction mixture is hydrogenated for 3 h at 2 bar H2 pressure and 25° C. Then the catalyst is filtered off and the solvent is eliminated in vacuo.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07521457B2
Source datasetuspto-grants-2009_04
ORD IDord-0f713e65252f4773878dec59e1f5996e
Source noteuspto-grants-2009_04