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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2093667Generated: October 31, 2026

Ethanol → ethyl (2R)-5-oxopyrrolidine-2-carboxylate

https://huagongshe.com/reaction/2093667

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantD-Pyroglutamic acidHCID 439685—
SolventSulfuric AcidHCID 1118—
Productethyl (2R)-5-oxopyrrolidine-2-carboxylateHCID 643508—

Reaction Steps

To a solution of D-pyroglutamic acid (compound I-A, 20.4 g, 0.16 mol) in 100 mL of EtOH, 1.2 mL of conc. sulfuric acid was added. The mixture was heated under reflux overnight. Solvent was removed under reduced pressure to give (R)-ethyl 5-oxopyrrolidine-2-carboxylate (compound II-AA).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08445503B2
Source datasetuspto-grants-2013_05
ORD IDord-2ecb5840ec594558a37db16c422bc1e2
Source noteuspto-grants-2013_05