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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 42708Generated: October 29, 2026

Ethyl Acetate → HCID 67446904, compound

https://huagongshe.com/reaction/42708

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantAmmonium formateHCID 2723923—
Reactant4-Chloro-2-(4-methoxybenzyl)-5-morpholinopyridazin-3(2H)-oneHCID 67446490—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
ProductHCID 67446904HCID 67446904—

Reaction Steps

To a mixture of 4-chloro-2-(4-methoxybenzyl)-5-(morpholin-4-yl)pyridazin-3(2H)-one (8.56 g, 25.50 mmol) and 10% Pd/C catalyst (1.45 g) in methanol (105 ml) was added ammonium formate (3.70 g, 58.7 mmol), and the mixture was refluxed under argon with TLC monitoring (ethyl acetate). Further portions of ammonium formate were added until the starting material was completely consumed. The catalyst was filtered off and washed with methanol, then the solvent was evaporated under reduced pressure. The residue was taken up in water (30 ml) and extracted with dichloromethane (4×40 ml). The combined extracts were washed with water, dried (Na2SO4) and evaporated. The crude product was purified by crystallization from ethanol (95%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536210B2
Source datasetuspto-grants-2013_09
ORD IDord-70c7a501a0ad4ab782260a29eb67f388
Source noteuspto-grants-2013_09