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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1099200Generated: October 31, 2026

Hydrochloric Acid → HCID 66811551, compound

https://huagongshe.com/reaction/1099200

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 66811513HCID 66811513—
ReactantHCID 178418361HCID 178418361—
CatalystPalladium hydroxideHCID 9942167—
SolventMethanolHCID 887—
ProductHCID 66811551HCID 6681155161%

Reaction Steps

To a solution of 1-phenyl-N-[(3-phenylpiperidin-2-yl)methyl]methanamine (101 mg, 0.359 mmol) in methanol (5 ml) were added 4M HCl in dioxane (0.090 ml, 0.359 mmol) and palladium hydroxide (28.9 mg, 0.036 mmol). The reaction mixture was charged with 1 atm hydrogen gas and allowed to stir for 18 h. The reaction mixture was filtered through celite, and to the filtrate was added 4M HCl in dioxane (0.090 ml, 0.359 mmol). The reaction was allowed to stir for 1 h and concentrated in vacuo to yield 2-(ammoniomethyl)-3-phenylpiperidinium dichloride (61%). LCMS (M+H)=191.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08143405B2
Source datasetuspto-grants-2012_03
ORD IDord-8b6baeb5833b41ad83dcbed9313b8f81
Source noteuspto-grants-2012_03