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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1888038Generated: November 1, 2026

Sulfuric Acid → HCID 11547418, compound

https://huagongshe.com/reaction/1888038

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantDonepezilHCID 3152—
SolventEthyl AcetateHCID 8857—
ProductHCID 11547418HCID 11547418—

Reaction Steps

Sulfuric acid (0.53 ml, dissolved in 35 ml of acetone) is slowly added to a solution of Donepezil (3.79 g) in ethyl acetate (70 ml) with stirring at room temperature. The solid precipitated is filtered and dried at 55° C. under vacuum to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08501779B2
Source datasetuspto-grants-2013_08
ORD IDord-924b4190c0f146cbbf4eb70fcff6b797
Source noteuspto-grants-2013_08