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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1929633Generated: October 30, 2026

Hydrochloric Acid → Hydrochloric Acid

https://huagongshe.com/reaction/1929633

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 66733720HCID 66733720—
SolventDichloromethaneHCID 6344—
ProductHydrochloric AcidHCID 313—
ProductHCID 66734063HCID 66734063—

Reaction Conditions

Temperature0 °C

Reaction Steps

To an ice-cooled solution of [2-(2-ethyl-4-iodo-imidazol-1-yl)-ethyl]carbamic acid tert-butyl ester (5.720 g; 15.662 mmol) in DCM (125 ml) was added slowly 4N HCl in dioxane (78 ml; 312 mmol). The resulting suspension was stirred at 0° C. for 15 min., then at rt for 1 h. The volatiles were removed under reduced pressure, then under HV. The product 2-(2-ethyl-4-iodo-imidazol-1-yl)-ethylamine was obtained as a pale beige solid (5.96 g; 100%; presence of 3 eq. of HCl). LC-MS: tR=0.14 min.; [M+H]+=266.24 g/mol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08188082B2
Source datasetuspto-grants-2012_05
ORD IDord-497240f93b30443c91ce314700b3b8cb
Source noteuspto-grants-2012_05