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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 37823Generated: October 29, 2026

1-(2-Cyclopent-1-enyl-2-oxo-ethyl)-2-methyl-pyridinium bromide salt → 1-(2-Cyclopentyl-2-oxo-ethyl)-2-methyl-pyridinium bromide salt

https://huagongshe.com/reaction/37823

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(2-Cyclopent-1-enyl-2-oxo-ethyl)-2-methyl-pyridinium bromide saltHCID 86639594—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product1-(2-Cyclopentyl-2-oxo-ethyl)-2-methyl-pyridinium bromide saltHCID 8663959293%

Reaction Steps

A solution of 1-(2-cyclopent-1-enyl-2-oxo-ethyl)-2-methyl-pyridinium bromide salt (3.65 g, 12.9 mmol) in methanol (25 mL) was hydrogenated over 10% Pd/C (180 mg). After completion of the reaction the catalyst was removed by filtration, washing with methanol, and concentration of the filtrate gave 1-(2-cyclopentyl-2-oxo-ethyl)-2-methyl-pyridinium bromide salt (3.4 g, 93%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08524705B2
Source datasetuspto-grants-2013_09
ORD IDord-98f63a28bdf942adaa9d24aceda54a07
Source noteuspto-grants-2013_09