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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2418460Generated: November 4, 2026

Ethylene Oxide → HCID 20446373, compound

https://huagongshe.com/reaction/2418460

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylene OxideHCID 6354—
Reactant1-(2,2,6,6-Tetramethylpiperidin-4-yl)azepan-2-oneHCID 18551435—
SolventDimethylformamideHCID 6228—
ProductHCID 20446373HCID 20446373—

Reaction Conditions

Temperature190 °C

Reaction Steps

To a small autoclave is charged a solution of 6.6 g (0.15 mole) of ethylene oxide and 25.2 g (0.1 mole) of N-(2,2,6,6-tetramethylpiperidin-4-yl)-epsilon-caprolactam, in 100 ml of N,N-dimethylformamide. The autoclave is heated for four hours at 190° C. during which time the pressure dropped from 100 psi (7 kg/cm2) to 70 psi (4.9 kg/cm2). The reaction mixture is then distilled in vacuo (50° C./2 mm) to remove the solvent. The residue is crystallized from 300 ml of heptane:toluene (2:1) to give the above-named product in a yield of 13.7 g as a white solid melting at 141°-142° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04472547
Source datasetuspto-grants-1984_09
ORD IDord-a0272b069b9445428c364db09ad0e732
Source noteuspto-grants-1984_09