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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2289161Generated: October 30, 2026

Hydrochloric Acid → 3-(5,6,7,8-Tetrahydro-1,8-naphthyridin-2-yl)propan-1-amine dihydrochloride

https://huagongshe.com/reaction/2289161

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-(3-(Boc-amino)-propyl)-5,6,7,8-tetrahydro-1,8-naphthyridineHCID 11231632—
SolventEthyl AcetateHCID 8857—
Product3-(5,6,7,8-Tetrahydro-1,8-naphthyridin-2-yl)propan-1-amine dihydrochlorideHCID 22678211—

Reaction Steps

HCl gas was rapidly bubbled through a solution of 1-7 (2.5 g, 8.6 mmol) in EtOAc (100 ml) at 0° C. for 10 minutes. After 30 minutes, the solution was purged with argon for 30 minutes. The solution was concentrated and then azeotroped with CH3CN to give the amine 1-8 as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06090944
Source datasetuspto-grants-2000_07
ORD IDord-0442579daf664cdb92a364eaf7c5e4f9
Source noteuspto-grants-2000_07