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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 236758Generated: October 30, 2026

Ethanol → HCID 23339003, compound

https://huagongshe.com/reaction/236758

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantThiopheneHCID 8030—
ReactantN-(Piperidin-4-yl)pyrimidin-2-amineHCID 18374737—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventAcetoneHCID 180—
SolventMethanolHCID 887—
ProductHCID 23339003HCID 23339003—

Reaction Steps

To 0.5 parts of a solution of 2 parts of thiophene in 40 parts of ethanol, are added 4 parts of 2-propanone, 4.5 parts of N-(4-piperidinyl)-2-pyrimidinamine and 120 parts of methanol. The whole is hydrogenated at normal pressure and at room temperature with 2 parts of palladium-on-charcoal catalyst 10%. After the calculated amount of hydrogen is taken up, the catalyst is filtered off and the filtrate is evaporated. The residue is dissolved in trichloromethane. The solution is washed successively with a diluted sodium hydroxide solution and with water, dried, filtered and evaporated, yielding 3 parts of N-[1-(1-methylethyl)-4-piperidinyl]-2-pyrimidinamine as a residue.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04157393
Source datasetuspto-grants-1979_06
ORD IDord-c6a7db5d92c346138ffbe170cc194c3c
Source noteuspto-grants-1979_06