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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 622820Generated: October 27, 2026

Ethylene Oxide → (1-2-Hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxymethyl-piperidine

https://huagongshe.com/reaction/622820

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylene OxideHCID 6354—
Reactant4-Piperidinemethanol, 2,2,6,6-tetramethyl-HCID 12293507—
SolventMethanolHCID 887—
Product(1-2-Hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxymethyl-piperidineHCID 53937473—

Reaction Conditions

Temperature120 °C

Reaction Steps

25 g of 2,2,6,6-tetramethyl-4-hydroxymethyl-piperidine of Example 1 (0.146 moles) were dissolved in 50 cc of methanol and added with 8 g (0.18 moles) of ethylene oxide. The solution was introduced into a steel autoclave and heated under stirring during 6 hours at 120° C. Then the solvent was evaporated and the residue was crystallized from acetonitrile. 30 g of product having a M.P. of 81°-83° C. were obtained, the product being characterized by N.M.R. and I.R. analyses and recognized as the product intended to be obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04772708
Source datasetuspto-grants-1988_09
ORD IDord-1622ac91569d402eb1fc83be1b33e6a2
Source noteuspto-grants-1988_09