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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1918568Generated: October 26, 2026

O-Toluidine → 1-(2-Methylphenyl)-2-oxo-3-pyrrolidinecarboxylic acid

https://huagongshe.com/reaction/1918568

Reaction equation

Participants

RoleNameHCIDCharge
ReactantO-ToluidineHCID 7242—
Reactant6,6-Dimethyl-5,7-dioxaspiro(2.5)octane-4,8-dioneHCID 79720—
SolventEthanolHCID 702—
Product1-(2-Methylphenyl)-2-oxo-3-pyrrolidinecarboxylic acidHCID 440545791%

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 o-toluidine (0.470 mL; 4.41 mmol) in ethanol (3 mL). 2-oxo-1-o-tolylpyrrolidine-3-carboxylic acid 0.292 g (91%) was obtained as a white film.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08618138B2
Source datasetuspto-grants-2013_12
ORD IDord-e3d2276399dd4f5b9b93d8f3700a1160
Source noteuspto-grants-2013_12