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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 597550Generated: October 30, 2026

Propylene Oxide → HCID 21871734, compound

https://huagongshe.com/reaction/597550

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPropylene OxideHCID 6378—
Reactant4-Hydroxy-2,2,6,6-tetramethylpiperidineHCID 75471—
SolventIsopropanolHCID 3776—
ProductHCID 21871734HCID 21871734—

Reaction Conditions

Temperature160 °C

Reaction Steps

A mixture of 3.14 parts of 2,2,6,6-tetramethylpiperidin-4-ol, 10 parts of propylene oxide and 10 parts of isopropanol was charged to an autoclave. A pressure of 100 atmospheres of nitrogen was applied and the mixture heated at 160°C for 6 hours. The isopropanol solvent and unreacted propylene oxide were removed by distillation under reduced pressure. Crystallisation of the residue from cyclohexane gave 3.0 parts of 1[2-hydroxypropyl]-2,2,6,6-tetramethylpiperidin-4-ol having a melting point of 97°-8°C and on further purification of 107°-8°C and the following elemental analysis by weight:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04014887
Source datasetuspto-grants-1977_03
ORD IDord-2c98ee0ca7ca44df8af72a4308e74f6b
Source noteuspto-grants-1977_03