Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 364738Generated: November 1, 2026

Sodium ethoxide → HCID 13281202, compound

https://huagongshe.com/reaction/364738

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ethoxideHCID 2723922—
ReactantHCID 12217449HCID 12217449—
ReactantHCID 13726734HCID 13726734—
SolventEthanolHCID 702—
ProductHCID 13281202HCID 1328120256.7%

Reaction Conditions

Temperature200 °C

Reaction Steps

A mixture of 4-cyanomethyl piperidine-1-carboxaldehyde (4. g, 0.026M) and 1,3-diaminopropane mono p-toluenesulfonate (7.3 g, 0.052M) was heated at 100° C. for 1/2 hrs and 200° C. for 2 hrs. The reaction mixture was dissolved in ethanol (50 ml) and sodium ethoxide (0.052M) was added. The mixture was filtered and the filtrate was stripped to dryness and distilled from about 170° to about 190° C./0.2 mmHg to yield 1,4,5,6-tetrahydro-2-[(4-piperidinyl)methyl]-pyrimidine (2.7 g, 56.7% yield). This compound was characterized as dihydrochloride salt, mp 279°-281° C. (EtOH).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04605744
Source datasetuspto-grants-1986_08
ORD IDord-af3ef6d1a8de48e6a630c282561a12d7
Source noteuspto-grants-1986_08