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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1387153Generated: October 31, 2026

Histamine → HCID 178526675, compound

https://huagongshe.com/reaction/1387153

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHistamineHCID 774—
Reactant2-Chloro-3-nitropyridineHCID 79613—
SolventIsopropanolHCID 3776—
ProductHCID 178526675HCID 17852667565%

Reaction Steps

1.14 g (10.2 mmol) of histamine base and 1.62 g (10.2 mmol) of 2-chloro-3-nitropyridine are brought to reflux in 5 ml of 2-propanol for 3 h. Evaporation of the solvent under reduced pressure and purification of the solid residue by chromatography on a column of silica gel, eluted with chloroform containing increasing amounts of methanol (5, 10 and 20%), provide the title compound. M.p.: 178°-180° C. (yield 65%; ethanol:water).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE037303E1
Source datasetuspto-grants-2001_07
ORD IDord-6459a821a06048c6a994ae99f1cf6745
Source noteuspto-grants-2001_07