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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1984986Generated: October 25, 2026

3-(1-Benzyl-1,2,3,6-tetrahydro-pyridin-4-yl)-2-ethyl-6-fluoro-1H-indole → 2-Ethyl-6-fluoro-3-piperidin-4-yl-1H-indole

https://huagongshe.com/reaction/1984986

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(1-Benzyl-1,2,3,6-tetrahydro-pyridin-4-yl)-2-ethyl-6-fluoro-1H-indoleHCID 67453700—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product2-Ethyl-6-fluoro-3-piperidin-4-yl-1H-indoleHCID 57718836116.4%

Reaction Steps

3-(1-Benzyl-1,2,3,6-tetrahydro-pyridin-4-yl)-2-ethyl-6-fluoro-1H-indole (1.4 g) is hydrogenated for 1 hour (r.t./1013 mbar) in the presence of 10% Pd/C catalyst (0.3 g) and methanol (25 ml). The catalyst is removed by filtration, the solvent evaporated and the residue washed with small portions of ether. 1.2 g (85%) of pure product is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07544806B2
Source datasetuspto-grants-2009_06
ORD IDord-35c46ecfe5c842a8b93a7115364dd2db
Source noteuspto-grants-2009_06