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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1768945Generated: October 25, 2026

Triethylamine → 1-(1-Adamantyl)-4-(4-chloro-3-oxo-2,3-dihydro-5-pyridazinyl)piperazine

https://huagongshe.com/reaction/1768945

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantPiperazine, 1-(1-adamantyl)-HCID 35373—
Reactant4,5-Dichloro-3-hydroxypyridazineHCID 73247—
SolventEthanolHCID 702—
Product1-(1-Adamantyl)-4-(4-chloro-3-oxo-2,3-dihydro-5-pyridazinyl)piperazineHCID 1894630473.7%

Reaction Steps

A mixture of 1-(1-adamantyl)piperazine (2.2 g, 10 mmol), triethylamine (1.36 ml, 10 mmol) and 4,5-dichloro-3-oxo-2,3-dihydropyridazine (1.65 g, 10 mmol) in ethanol (25 ml) was heated under reflux for 5 hours. After cooling the precipitated solids were collected, washed with ethanol and dried to afford 2.57 g of the title compound, yield: 73.6%, mp. 292°-294° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05380724
Source datasetuspto-grants-1995_01
ORD IDord-983c00e751b44387b3912056b5a06470
Source noteuspto-grants-1995_01