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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 276322Generated: October 30, 2026

Ethanolamine → HCID 18316174, compound

https://huagongshe.com/reaction/276322

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
ReactantCyclopentanoneHCID 8452—
ProductHCID 18316174HCID 18316174—

Reaction Steps

2-Hydroxyethylamine and cyclopentanone were reacted according to Method B4b, Step 1 to afford 4-aza-1-oxaspiro[4.4]nonane. The oxazolidine was reduced according to method B4b, Step 2 to afford N-cyclopentyl-N-(2-hydroxyethyl)amine. The alcohol was reacted with SOCl2 according to Method B7c to afford N-cyclopentyl-N-(2-chloroethyl)amine. The amine was reacted with 2-methyl-4-nitrophenyl isothiocyanate according to Method C1d to afford 2-(2-methyl-4-nitrophenylimino)-3-(cyclopentyl)-1,3-thiazolidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06353006B1
Source datasetuspto-grants-2002_03
ORD IDord-33edb86181574cf099b2dcdd0ba5c494
Source noteuspto-grants-2002_03