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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 654886Generated: October 30, 2026

Formaldehyde → HCID 54533758, compound

https://huagongshe.com/reaction/654886

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantHCID 131717472HCID 131717472—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductHCID 54533758HCID 5453375858.8%

Reaction Steps

N-[2-[[(7-Methoxy-2-benzofuranyl)methyl]amino]ethyl]tricyclo[3.3.1.13,7 ]decane-1-carboxamide hydrochloride hemihydrate (1.0 g, 2.4 mmole), prepared as in Example 2, was dissolved in 100 ml of ethanol and 5 ml of 38% aqueous formaldehyde and 500 mg of 10% palladium on carbon were added. The mixture was hydrogenated at 50 psi on a Parr apparatus for 24 hours. The mixture was then filtered through celite and 300 ml of ether added. It was washed with 100 ml portions of saturated aqueous sodium bicarbonate and saturated aqueous sodium chloride, dried over sodium sulfate, filtered and evaporated in vacuum. The residue was purified by column chromatography on 100 g of silica gel with chloroform as eluant and recrystallized from acetone/diethyl ether with the addition of 3 ml of 4N HCl/isopropanol to give 560 mg of the title compound as a white solid, monohydrochloride, quarter hydrate, m.p. 156°-158° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05134140
Source datasetuspto-grants-1992_07
ORD IDord-a726796209804089bdac0c5f8d96b973
Source noteuspto-grants-1992_07