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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2245185Generated: October 30, 2026

Ethylenediamine → HCID 68544128, compound

https://huagongshe.com/reaction/2245185

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylenediamineHCID 3301—
Reactant1-(2-bromoethyl)-1H-pyrazoleHCID 642215—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 68544128HCID 6854412850%

Reaction Steps

A solution of 1-(2-bromoethyl)pyrazole [6d] (12 mmol) in tetrahydrofuran was added dropwise to a solution of ethylenediamine (0.24 mol) in water. The mixture was refluxed for 4 hours. The THF was removed under vacuum and the water phase was washed with dichloromethane. After drying under vacuum resulted a yellow oil which was formulated as pz(CH2)2NH(CH2)2NH2 (1). Yield: 50%

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07682601B2
Source datasetuspto-grants-2010_03
ORD IDord-7c8eda593d6c4b59a76a846090f7cdc6
Source noteuspto-grants-2010_03