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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1068725Generated: November 4, 2026

Hydrochloric Acid → 4,5-Dihydro-4[5-(amino)pentan-1-yl]-3h-1,4,8b-triazaacenaphthylen-5-one.dihydrochloride

https://huagongshe.com/reaction/1068725

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4,5-Dihydro-4[5-(tert-butoxycarbonylamino)pentan-1-yl]-3H-1,4,8b-triazaacenaphthylen-5-oneHCID 21190173—
SolventEthanolHCID 702—
Product4,5-Dihydro-4[5-(amino)pentan-1-yl]-3h-1,4,8b-triazaacenaphthylen-5-one.dihydrochlorideHCID 21846501—

Reaction Steps

To a solution of 2.24 g (6.25 mmol) of 4,5-dihydro-4[5-(tert-butoxycarbonylamino)pentan-1-yl]-3H-1,4,8b-triazaacenaphthylen-5-one in 20 ml of ethanol was added 20 ml of conc. HCl. The mixture was stirred for 1.5 hour at room temperature. The solvent was distilled off to leave 2.05 g of the desired compound (quant. a pale brown solid). This product was used in the subsequent reaction without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06251905B1
Source datasetuspto-grants-2001_06
ORD IDord-94b7f1198d414a29933569e98e947b9a
Source noteuspto-grants-2001_06