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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1459253Generated: October 31, 2026

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

https://huagongshe.com/reaction/1459253

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 numberUS05854234
Source datasetuspto-grants-1998_12
ORD IDord-5c46e4373a2843ac8aa54bedb7b67601
Source noteuspto-grants-1998_12