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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 490084Generated: October 30, 2026

889851-56-3 → 6-(4-Ethyl-1-piperazinyl)-3-pyridinemethanamine

https://huagongshe.com/reaction/490084

Reaction equation

Participants

RoleNameHCIDCharge
Reactant889851-56-3HCID 16748394—
ReactantHCID 178418361HCID 178418361—
CatalystNickelHCID 935—
SolventAmmoniaHCID 222—
SolventMethanolHCID 887—
SolventEthyl AcetateHCID 8857—
Product6-(4-Ethyl-1-piperazinyl)-3-pyridinemethanamineHCID 16788254103.8%

Reaction Steps

A mixture of 2 g (8 mmol) 6-(4-ethyl-piperazin-1-yl)-nicotinonitrile, 1.3 g Raney Nickel (B113Z, Degussa) in 25 ml methanol, 15 ml ethyl acetate and 5 ml ammonia aq. (ca. 25%) was treated with 1 bar hydrogen at 30-35° C. for 4 h. The mixture was filtered and the residue washed three times with 20 ml ethyl acetate each and the combined organic phases evaporated to dryness to yield 1.83 g (97%) of the title compound as white crystals. (m/e): 261.1 (MH+; 100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07528135B2
Source datasetuspto-grants-2009_05
ORD IDord-557573b2eabb4b8fa66855591abd3a0c
Source noteuspto-grants-2009_05