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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2231167Generated: October 25, 2026

Ethylenediamine → Clonidine

https://huagongshe.com/reaction/2231167

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylenediamineHCID 3301—
ReactantAcetonitrileHCID 6342—
Reactant2,6-dichlorobenzenesulfonic AcidHCID 4051324—
ProductClonidineHCID 2803—

Reaction Conditions

Temperature65 °C

Reaction Steps

2,6-dichlorophenylsulfonic acid (1.0 g, 0.0037 m) was added to ethylenediamine (0.5 g, 0.008 m) in the absence of solvent. The reaction exothermed to 35° C. and was diluted with acetonitrile and heated at 65° C. for 7.25 hr. The reaction was concentrated, treated with sodium hydroxide and extracted with methylene chloride. The organic phase was dried and concentrated to yield 0.5 g of clonidine. The product was identified by spectroscopic methods.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04781866
Source datasetuspto-grants-1988_11
ORD IDord-9868b38f873b4a8fa7a6c48a028fab4f
Source noteuspto-grants-1988_11