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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1068585Generated: November 1, 2026

Ethanolamine → HCID 21189863, compound

https://huagongshe.com/reaction/1068585

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
Reactant3-Bromopropionic acidHCID 11553—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
ReactantHCID 14093516HCID 14093516—
ProductHCID 21189863HCID 21189863—

Reaction Steps

The required intermediate, 2-(2-bromoethyl)oxazoline, is prepared in a two-step process starting with 3-bromopropionic acid. Reaction of this acid with CDI followed by ethanolamine gives N-(2-hydroxyethyl)-3-bromopropionamide. Treatment of this compound with triphenylphosphine (PPh3) and DEAD in THF yields 2-(2-bromoethyl)oxazoline.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06251898B1
Source datasetuspto-grants-2001_06
ORD IDord-249412554cb34db382cd496cbb835fa0
Source noteuspto-grants-2001_06