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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1675004Generated: October 31, 2026

Diisopropylethylamine → HCID 59149723, compound

https://huagongshe.com/reaction/1675004

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant6-Chloro-3-(trifluoromethyl)-(1,2,4)triazolo(4,3-b)pyridazineHCID 613657—
Reactant1-(1-Phenylethyl)piperazineHCID 2737134—
SolventDimethylformamideHCID 6228—
ProductHCID 59149723HCID 5914972376.2%

Reaction Conditions

Temperature80 °C

Reaction Steps

6-Chloro-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine (400 mg, 1.80 mmol), 1-(1-phenylethyl)piperazine (342 mg, 1.80 mmol) and DIPEA (0.34 mL, 1.98 mmol) in DMF (4 mL) were stirred and heated at 80° C. for 30 minutes. The mixture was cooled to ambient temperature then applied to an SCX column and eluted with methanol followed by 2M ammonia in methanol. Fractions containing pure product were evaporated to give a solid which was recrystallised from MTBE/isohexane to give 6-[4-(1-phenylethyl)piperazin-1-yl]-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazine (516 mg, 76%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08003649B2
Source datasetuspto-grants-2011_08
ORD IDord-9f97f1fa3ddb4a62b1fa803004b1956e
Source noteuspto-grants-2011_08