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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 276614Generated: October 26, 2026

Ethanolamine → 1-Aminocyclopentanemethanol

https://huagongshe.com/reaction/276614

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
ReactantThionyl ChlorideHCID 24386—
Reactant4-Iodo-2-n-propylanilineHCID 10515532—
Reactant4-Iodo-2-n-propylphenyl isothiocyanateHCID 18316247—
Product1-AminocyclopentanemethanolHCID 66307—
ProductHCID 178439353HCID 178439353—

Reaction Steps

4-Iodo-2-n-propylaniline was converted to 4-iodo-2-n-propylphenyl isothiocyanate according to Method A2b. 1-Hydroxymethylcyclopentanamine was prepared according to Method B1c. The 2-hydroxyethylamine was sequentially reacted with SOCl2 and 4-iodo-2-n-propylphenyl isothiocyanate according to Method C2a to give 2-(4-iodo-2-n-propylphenylimino)-3-thia-1-azaspiro[4.4]nonane. The thiazolidine was reacted with cyclopentyl bromide according to Method D2b to give 2-(4-iodo-2-n-propylphenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane. The phenyl iodide was reacted with CuCN according to Method D7a to afford 2-(4-cyano-2-n-propylphenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06353006B1
Source datasetuspto-grants-2002_03
ORD IDord-b94cc4b2122a470595f2a9a5116d86f5
Source noteuspto-grants-2002_03