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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1888045Generated: October 31, 2026

Phosphoric Acid → HCID 11677224, compound

https://huagongshe.com/reaction/1888045

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphoric AcidHCID 1004—
ReactantDonepezilHCID 3152—
SolventAcetoneHCID 180—
ProductHCID 11677224HCID 11677224—

Reaction Steps

Donepezil (3.79 g, dissolved in 70 ml of ethyl acetate) is slowly added to a solution of phosphoric acid (0.29 ml) in acetone (35 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-b86c32b56e1e4e72a277cb6d29e4174c
Source noteuspto-grants-2013_08