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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1605926Generated: October 26, 2026

Cyanoacetamide → Piperidine

https://huagongshe.com/reaction/1605926

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyanoacetamideHCID 7898—
ReactantEthyl formateHCID 8025—
ReactantSodiumHCID 5360545—
ReactantSodium MethoxideHCID 10942334—
Reactantp-(4-Propyl-1-piperazinyl)acetophenoneHCID 21404502—
Reactantp-(4-Propyl-1-piperazinyl)benzoylacetaldehydeHCID 54256791—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductPiperidineHCID 8082—
Product6-[p-(4-Propyl-1-piperazinyl)phenyl]-1,2-dihydro-2-oxonicotinonitrileHCID 21404489—

Reaction Steps

From a solution of the sodium salt of p-(4-propyl-1-piperazinyl)benzoylacetaldehyde in 150 ml. of water (prepared from 5.7 g. of sodium methoxide in 500 ml. of tetrahydrofuran, and a solution of 24.6 g. of p-(4-propyl-1-piperazinyl)acetophenone and 8.0 ml. of ethyl formate in 100 ml. of tetrahydrofuran), 8.4 g. of 2-cyanoacetamide and a solution consisting of 0.95 ml. of acetic acid, 4.0 ml. of water and 0.9 ml. of piperidine, there is obtained 6-[p-(4-propyl-1-piperazinyl)phenyl]-1,2-dihydro-2-oxonicotinonitrile; m.p. 288°-290° (dec.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03951982
Source datasetuspto-grants-1976_04
ORD IDord-c16ecb7651af4f8ea0e9d0480bf1f424
Source noteuspto-grants-1976_04