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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1867367Generated: October 29, 2026

Hydrochloric Acid → HCID 68433890, compound

https://huagongshe.com/reaction/1867367

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
Reactant1-benzyl-3-(hydroxymethyl)piperidin-4-olHCID 3682705—
CatalystPalladium hydroxideHCID 9942167—
SolventMethanolHCID 887—
ProductHCID 68433890HCID 6843389086%

Reaction Steps

A solution of 1 g (4.52 mmol) (rac)-1-benzyl-3-hydroxymethyl-piperidin-4-ol (ca 1:1 diast mixture, Synthesis (1999), 11, 1937-1943) in 25 ml of MeOH was treated with a solution of HCl in dioxane (1.24 ml, 4 M in dioxane, 4.97 mmol) and 95 mg of Pd(OH)2/C (20%) and was stirred over H2-atmosphere for 16 h. After filtration, new catalyst was added (95 mg of Pd(OH)2/C (20%)) and stirred over H2-atmosphere for 2 days. After filtration, the solution was evaporated under reduced pressure to yield 0.66 g (86%) of the title compound as a ca 1:1 cis/trans mixture, MS: 132.3 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07632829B2
Source datasetuspto-grants-2009_12
ORD IDord-fd2ae68716854321a1019fb21c656525
Source noteuspto-grants-2009_12