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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1728605Generated: November 2, 2026

Hydrochloric Acid → HCID 19016524, compound

https://huagongshe.com/reaction/1728605

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant3-IsocyanatopyridineHCID 2760493—
Reactant1-methyl-1H-indol-4-amineHCID 22170307—
SolventEthanolHCID 702—
SolventDichloromethaneHCID 6344—
ProductHCID 19016524HCID 19016524—

Reaction Steps

A solution of the aminoindole (D10) (0.44 g; 3.01 mM) in dichloromethane (10 ml) was added dropwise to a solution of 3-pyridyl isocyanate (D4) (prepared from 3-pyridine carbonyl azide (0.51 g; 3.4 mM) in toluene) at room temperature. The reaction mixture was stirred for 17 h, then cooled and the precipitate filtered off to give the crude product (1 g; 100%). This was dissolved in hot ethanol and ethereal hydrogen chloride added to afford the title compound as its hydrochloride salt (0.74 g; 81%), m.p 238° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05328922
Source datasetuspto-grants-1994_07
ORD IDord-625c119a8f614b5a9a67033e7699d135
Source noteuspto-grants-1994_07