Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 276565Generated: October 25, 2026

Ethanolamine → 1-Aminocyclopentanemethanol

https://huagongshe.com/reaction/276565

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
Reactant4-Nitro-m-toluidineHCID 11898—
ReactantThionyl ChlorideHCID 24386—
Reactant3-Methyl-4-nitrophenyl isothiocyanateHCID 18316341—
Product1-AminocyclopentanemethanolHCID 66307—
Product1-(Chloromethyl)cyclopentan-1-amine hydrochlorideHCID 69992485—

Reaction Steps

3-Methyl-4-nitroaniline was converted to 3-methyl-4-nitrophenyl isothiocyanate according to Method A2a, Step 3. 1-Amino-1-(hydroxymethyl)cyclopentane was synthesized as described in Method B1c. The 2-hydroxyethylamine was reacted with SOCl2 according to Method B7a to give 1-amino-1-(chloromethyl)cyclopentane HCl salt. The 2-chloroethylamine was reacted with 3-methyl-4-nitrophenyl isothiocyanate according to Method C1a to give 2-(3-methyl-4-nitrophenylimino)-3-thia-1-azaspiro[4.4]nonane. The thiazolidine was reacted with isobutyl bromide according to Method D2a to afford 1-isobutyl-2-(3-methyl-4-nitrophenylimino)-3-thia-1-azaspiro[4.4]nonane.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06353006B1
Source datasetuspto-grants-2002_03
ORD IDord-17d5ace8ff2d483185d1251b3dd072d2
Source noteuspto-grants-2002_03