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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1156319Generated: October 27, 2026

Ammonia → HCID 20278960, compound

https://huagongshe.com/reaction/1156319

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
Reactant4-(4-Fluorobenzoyl)-alpha-methyl-1-piperidineacetonitrileHCID 13476551—
ReactantHCID 178418361HCID 178418361—
CatalystNickelHCID 935—
SolventMethanolHCID 887—
ProductHCID 20278960HCID 20278960100%

Reaction Steps

A mixture of 32 parts of 4-(4-fluorobenzoyl)-α-methyl-1-piperidineacetonitrile and 400 parts of methanol, saturated with ammonia is hydrogenated in the Parr-apparatus at 25° C. with 5 parts of Raney-nickel catalyst. After the calculated amount of hydrogen is taken up, the catalyst is filtered off and the filtrate is evaporated. The residue is taken up in methylbenzene and the latter is evaporated again. The residue is dissolved in 2,2'-oxybispropane and the solution is filtered till clear. The solvent is evaporated, yielding 32 parts (100%) of [1-(2-amino-1-methylethyl)-4-piperidinyl] (4-fluorophenyl)methanone as an oily residue.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04335127
Source datasetuspto-grants-1982_06
ORD IDord-82b236396d184543a936b2bc844e477c
Source noteuspto-grants-1982_06