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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2361876Generated: October 30, 2026

Cyclopentanone → Pyrrolidine, 1-(1-cyclopenten-1-yl)-

https://huagongshe.com/reaction/2361876

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclopentanoneHCID 8452—
ReactantPyrrolidineHCID 31268—
SolventTolueneHCID 1140—
ProductPyrrolidine, 1-(1-cyclopenten-1-yl)-HCID 81570100%

Reaction Steps

To a solution of cyclopentanone (25.0 mL, 0.28 mol, 1.0 eq.) in toluene (100 mL), was added pyrrolidine (27.5 mL, 1.2 eq.). The reaction was equipped with a Dean-Stark and heated at reflux overnight. The reaction mixture was cooled to room temperature and concentrated to give the crude 1-cyclopent-1-enyl-pyrrolidine (45.8 g, >100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08691814B2
Source datasetuspto-grants-2014_04
ORD IDord-d2bfe4e691724adcaa9a57ec97a005c2
Source noteuspto-grants-2014_04