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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1961371Generated: October 30, 2026

Methanol → 1-(4-Azetidin-3-yl-piperazin-1-yl)-2,2,2-trifluoro-ethanone

https://huagongshe.com/reaction/1961371

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantDiethyl EtherHCID 3283—
Reactant1-Chloroethyl chloroformateHCID 521305—
Reactant1-[4-(1-Benzhydryl-azetidin-3-yl)-piperazin-1-yl]-2,2,2-trifluoro-ethanoneHCID 59625975—
SolventDichloromethaneHCID 6344—
Product1-(4-Azetidin-3-yl-piperazin-1-yl)-2,2,2-trifluoro-ethanoneHCID 59625678—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of 1-[4-(1-benzhydryl-azetidin-3-yl)-piperazin-1-yl]-2,2,2-trifluoro-ethanone (2.11 g, 5.23 mmol) in CH2Cl2 (60 mL) was added 1-chloroethyl chloroformate (2.0 mL, 18.35 mmol) at 0° C. under N2. The resulting mixture was stirred at 0° C. for 90 min and then methanol (4 mL) was added. The resulting mixture was refluxed for 1 h. Upon cooling, diethyl ether (50 mL) was added to the mixture. The resulting solid was collected by filtration and dried to yield the title compound, which was used in the next reaction without further purification. MS m/z (M+H+) 238.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08415341B2
Source datasetuspto-grants-2013_04
ORD IDord-68586238c42340bf9a14e7599d4b9a63
Source noteuspto-grants-2013_04