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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1972237Generated: October 31, 2026

tert-butyl(R)-1-[3-(trifluoromethyl)phenyl]-2-(2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-yl)ethylcarbamate → (5R)-1-(tert-butoxycarbonyl)-5-[3-(trifluoromethyl)phenyl]-2-oxopyrrolidine-3-carboxylic acid

https://huagongshe.com/reaction/1972237

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-butyl(R)-1-[3-(trifluoromethyl)phenyl]-2-(2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-yl)ethylcarbamateHCID 59485714—
SolventTolueneHCID 1140—
Product(5R)-1-(tert-butoxycarbonyl)-5-[3-(trifluoromethyl)phenyl]-2-oxopyrrolidine-3-carboxylic acidHCID 59485976—

Reaction Conditions

Temperature110 °C

Reaction Steps

The mixture of tert-butyl (R)-1-[3-(trifluoromethyl)phenyl]-2-(2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-yl)ethylcarbamate (520 mg, 1.21 mmol) and toluene (15 mL) is stirred at 110° C. for 3 h. Concentration to give (5R)-1-(tert-butoxycarbonyl)-5-[3-(trifluoromethyl)phenyl]-2-oxopyrrolidine-3-carboxylic acid as a colorless oil. This product is used for the next step without further purification. HPLC-MS calculated for C12H10F3NO3 (M-Boc+H+) 274.06, found 274.10.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08431607B2
Source datasetuspto-grants-2013_04
ORD IDord-88470241895a45c6997e8be4aa5cd82d
Source noteuspto-grants-2013_04