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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1922694Generated: October 30, 2026

Trifluoroacetic acid → HCID 59606190, compound

https://huagongshe.com/reaction/1922694

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant1-Azetidinecarboxylic acid, 3-(2-oxo-1-pyrrolidinyl)-, 1,1-dimethylethyl esterHCID 59606182—
SolventDichloromethaneHCID 6344—
ProductHCID 59606190HCID 5960619093.3%

Reaction Steps

A mixture of 3-(2-oxopyrrolidin-1-yl)azetidine-1-carboxylic acid tert-butyl ester (320 mg, 1.33 mmol) and TFA (1.5 mL) in DCM (3 mL) was stirred at room temperature for 4 h. The reaction mixture was loaded onto an Isolute® SCX-2 cartridge, washed with MeOH/DCM and eluted with 2M NH3/MeOH affording 1-Azetidin-3-ylpyrrolidin-2-one as a white solid (174 mg, 93%). 1H NMR (CDCl3, 300 MHz): γ 5.05 (m, 1H), 3.85-3.76 (m, 4H), 3.61 (m, 2H), 2.41 (m, 2H) and 2.07 (m, 2H)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08173650B2
Source datasetuspto-grants-2012_05
ORD IDord-64b1584c3ce64ad5a53f79f3f815949b
Source noteuspto-grants-2012_05