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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1388402Generated: October 31, 2026

Sodium ethoxide → HCID 13281202, compound

https://huagongshe.com/reaction/1388402

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, 0.026 M) and 1,3-diaminopropane mono p-toluenesulfonate (7.3 g, 0.052 M) 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 (0.052 M) 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°-28]° C. (EtOH).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04431653
Source datasetuspto-grants-1984_02
ORD IDord-64ff674a7181407ca34c248eb6f5f662
Source noteuspto-grants-1984_02