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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 58576Generated: October 26, 2026

6,6-Dimethyl-5,7-dioxaspiro(2.5)octane-4,8-dione → 2-Oxo-1-(4-(trifluoromethoxy)phenyl)pyrrolidine-3-carboxylic acid

https://huagongshe.com/reaction/58576

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6,6-Dimethyl-5,7-dioxaspiro(2.5)octane-4,8-dioneHCID 79720—
Reactant4-(Trifluoromethoxy)anilineHCID 600848—
SolventEthanolHCID 702—
Product2-Oxo-1-(4-(trifluoromethoxy)phenyl)pyrrolidine-3-carboxylic acidHCID 2468936182.3%

Reaction Steps

This compound was prepared according to general method 1 starting from 6,6-dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione (0.250 g, 1.47 mmol) and 4-(trifluoromethoxy)aniline (0.595 mL; 4.41 mmol) in ethanol (3 mL). 2-oxo-1-(4-(trifluoromethoxy)phenyl)pyrrolidine-3-carboxylic acid 0.350 g (82%) was obtained as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434722B2
Source datasetuspto-grants-2016_09
ORD IDord-56b333c44e0549008827d4b10428caf3
Source noteuspto-grants-2016_09