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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2115898Generated: October 31, 2026

3,3-Dimethyl-1-[2-nitro-4-(trifluoromethyl)phenyl]azetidin-2-one → 1-[2-Amino-4-(trifluoromethyl)phenyl]-3,3-dimethyl-2-azetidinone

https://huagongshe.com/reaction/2115898

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,3-Dimethyl-1-[2-nitro-4-(trifluoromethyl)phenyl]azetidin-2-oneHCID 26985628—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product1-[2-Amino-4-(trifluoromethyl)phenyl]-3,3-dimethyl-2-azetidinoneHCID 16086098—

Reaction Steps

A mixture of 3,3-dimethyl-1-(2-nitro-4-(trifluoromethyl)phenyl)azetidin-2-one (1.67 g, 5.8 mmol, 1.0 equiv) and 10% Pd/C (300 mg) in MeOH (30 mL) was exposed to an atmosphere of H2. After consumption of the starting material, the mixture was filtered and concentrated to afford 1-(2-amino-4-(trifluoromethyl)phenyl-3,3-dimethylazetidin-2-one, which was advanced without further purification. MS (MH+) 259.1; Calculated 259.1 for C12H14F3N2O.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07435823B2
Source datasetuspto-grants-2008_10
ORD IDord-8e94fe97f8484417ac70140a70526d80
Source noteuspto-grants-2008_10