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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 889025Generated: November 4, 2026

Itaconic acid → 1-(4-Isopropylphenyl)-5-oxopyrrolidine-3-carboxylic acid

https://huagongshe.com/reaction/889025

Reaction equation

Participants

RoleNameHCIDCharge
ReactantItaconic acidHCID 811—
Reactant4-IsopropylanilineHCID 7464—
SolventSodium HydroxideHCID 14798—
Product1-(4-Isopropylphenyl)-5-oxopyrrolidine-3-carboxylic acidHCID 3151003751.6%

Reaction Conditions

Temperature125 °C

Reaction Steps

A mixture of 4-isopropylaniline (0.76 g, 0.565 mmol) and itaconic acid (0.70 g, 0.538 mmol) was heated at 120-130° C. in a sealed tube for 2.5 hrs. The mixture was cooled and dissolved in 10% NaOH solution (15 ml) and stirred for 20 min. The aqueous layer was washed with ethyl acetate and acidified with dil. HCl. The precipitate was filtered to obtain 1-(4-isopropyl-phenyl)-5-oxo-pyrrolidine-3-carboxylic acid (1.0 g, 75%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08252797B2
Source datasetuspto-grants-2012_08
ORD IDord-3dc6c19888544f5d8690f43ceb657f86
Source noteuspto-grants-2012_08