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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 602665Generated: October 30, 2026

Trifluoroacetic acid → Azetidin-3-yl(3,5-difluorophenyl)methanone

https://huagongshe.com/reaction/602665

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant1,1-Dimethylethyl 3-(3,5-difluorobenzoyl)-1-azetidinecarboxylateHCID 67065905—
SolventHydrochloric AcidHCID 313—
Solvent1,4-DioxaneHCID 31275—
ProductAzetidin-3-yl(3,5-difluorophenyl)methanoneHCID 67065914—

Reaction Steps

A solution of 400 mg (1.35 mmol) of tert-butyl 3-(3,5-difluorobenzoyl)azetidine-1-carboxylate in 6 mL of HCl in dioxane (4M) and 2.5 mL of TFA was stirred for 4 h at 50° C. The reaction mixture was concentrated, and the residue was washed with hexanes/ether (1/1) to afford the title compound. Mass Spectrum: m/e=199 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07906503B2
Source datasetuspto-grants-2011_03
ORD IDord-690a8d1c6f9d4259be1f5ae100ea3c17
Source noteuspto-grants-2011_03