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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1869749Generated: October 28, 2026

Hydrochloric Acid → HCID 69240668, compound

https://huagongshe.com/reaction/1869749

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 57987540HCID 57987540—
CatalystAdams' catalystHCID 345198—
SolventMethanolHCID 887—
ProductHCID 69240668HCID 6924066861.4%

Reaction Steps

A mixture of the pyridine from Step 1 (270 mg, 0.77 mmol) platinum (IV) oxide (30 mg) and HCl solution (4N in dioxan, 0.2 ml, 0.8 mmol) in MeOH (15 ml) was hydrogenated at 20 psi on a Parr® apparatus for 0.5 hours. The catalyst was removed by filtration and the filtrate evaporated in vacuo. The residue was purified by chromatography on silica, eluting with 1-2% 2M NH3 in MeOH/DCM to give the title compound (168 mg, 61%) as an oil The give the desired piperidine as white solid (7.1 g, quant). M/Z (ES+) 348 (MH+). The product was contaminated with a small amount of over reduced material: M/Z (ES+) 362 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07638629B2
Source datasetuspto-grants-2009_12
ORD IDord-0a0c0554bb1e41448bb1792407e8618f
Source noteuspto-grants-2009_12