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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2294792Generated: October 28, 2026

p-Toluenesulfonic acid → HCID 57094954, compound

https://huagongshe.com/reaction/2294792

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant4-PyridinepropanolHCID 72923—
CatalystAdams' catalystHCID 345198—
SolventEthanolHCID 702—
ProductHCID 57094954HCID 57094954112.1%

Reaction Steps

To a solution of 3-(4-pyridyl)propan-1-ol (15.13 g, 0.1103 mol) in EtOH (100 mL) was added p-TsOH (20.98 g, 0.1103 mol) and PtO2 (1.5 g, 6.6 mmol). The resulting mixture was placed on a Parr apparatus and hydrogenated at 55 p.s.i. After 6 hr, the mixture was filtered (EtOH wash) and the filtrate concentrated in vacuo, giving 36.78 g (>100%) of the desired piperidine; 1H NMR (300 MHz, CDCl3) δ7.7 (d, 2H), 7.2 (d, 2H), 3.55 (t, 2H), 3.3 (m, 4H), 2.95 (bt, 2H), 2.38 (s, 3H), 1.95 (bd, 2H), 1.58 (m, 2H), 1.3 (m, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05691329
Source datasetuspto-grants-1997_11
ORD IDord-e8e10892f0ac46f588bc70a13eaeb74c
Source noteuspto-grants-1997_11