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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 50642Generated: October 26, 2026

Acetic Anhydride → (1r-trans)-n-[2-(3,4-Difluorophenyl)cyclopropyl]acetamide

https://huagongshe.com/reaction/50642

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantPotassium CarbonateHCID 11430—
ReactantAmmonium ChlorideHCID 25517—
Reactant2,3-DihydroxybutanedioateHCID 3806114—
Reactant(1R,2S)-2-(3,4-Difluorophenyl)cyclopropanamineHCID 9834068—
SolventTetrahydrofuranHCID 8028—
Product(1r-trans)-n-[2-(3,4-Difluorophenyl)cyclopropyl]acetamideHCID 69887260—

Reaction Steps

Acetic anhydride (0.31 ml) was added to a suspension of (1R-trans)-2-(3,4-difluorophenyl)cyclopropanamine, (R-(R*,R*)]-2,3-dihydroxybutanedioate (1:1) (prepared as described in International Patent Application WO 9905143) (700 mg) and potassium carbonate (1.0 g) in tetrahydrofuran (20 ml) and stirred for 20 h. Saturated ammonium chloride solution was added and the mixture was extracted with ether and the organic layers were dried (MgSO4) and evaporated to afford the sub-title compound (470 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06713483B1
Source datasetuspto-grants-2004_03
ORD IDord-e5640ab26898412dae32d8e60d984a6f
Source noteuspto-grants-2004_03