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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1444610Generated: October 25, 2026

Hydrochloric Acid → 3-(4-Amino-butyl)-7,8-dimethoxy-2a,3,4,5-tetrahydro-2H-3-aza-acenaphthylen-1-one dihydro-chloride

https://huagongshe.com/reaction/1444610

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant[4-(7,8-Dimethoxy-1-oxo-2,2a,4,5-tetrahydro-1H-3-aza-acenaphthylen-3-yl)-butyl]-carbamic acid tert-butyl esterHCID 57729072—
SolventEthanolHCID 702—
SolventDiethyl EtherHCID 3283—
SolventDichloromethaneHCID 6344—
Product3-(4-Amino-butyl)-7,8-dimethoxy-2a,3,4,5-tetrahydro-2H-3-aza-acenaphthylen-1-one dihydro-chlorideHCID 6735858280%

Reaction Steps

[4-(7,8-Dimethoxy-1-oxo-2,2a,4,5-tetrahydro-1H-3-aza-acenaphthylen-3-yl)-butyl]-carbamic acid tert-butyl ester (498 mg, 1.22 mmol) is dissolved in a mixture of CH2Cl2 (10 ml) and ethanol (2 ml) and a solution of 2 N HCl in Et2O is added (6 ml, 12 mmol). A brown precipitate appears, which is collected by filtration (367 mg, 80% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07662862B2
Source datasetuspto-grants-2010_02
ORD IDord-8e48048f3c6d427f946992e50fb9e972
Source noteuspto-grants-2010_02