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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1279560Generated: October 31, 2026

p-Toluenesulfonic acid → 4-Methyl-5-(2-propenyl)pyrrolidin-2-one

https://huagongshe.com/reaction/1279560

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant5-(3-Hydroxypropyl)-4-methylpyrrolidin-2-oneHCID 18428563—
SolventTolueneHCID 1140—
Product4-Methyl-5-(2-propenyl)pyrrolidin-2-oneHCID 18782103—

Reaction Steps

The product of EXAMPLE 235 is treated with PTSA in refluxing toluene, with a Dean-Stark trap to remove water. The solvent is removed to yield the title material.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06448286B1
Source datasetuspto-grants-2002_09
ORD IDord-cf10568937ee4306b9b4bd20cf50ee67
Source noteuspto-grants-2002_09