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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269291Generated: October 29, 2026

5-Ethynylpyridin-2-amine → 5-[8-Trifluoromethyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-b]pyridazin-3-ylethynyl]-pyridin-2-ylamine

https://huagongshe.com/reaction/269291

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Ethynylpyridin-2-amineHCID 21954827—
Reactant3-Iodo-8-trifluoromethyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-b]pyridazineHCID 86608024—
Product5-[8-Trifluoromethyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-b]pyridazin-3-ylethynyl]-pyridin-2-ylamineHCID 16738271—

Reaction Steps

The title compound was prepared from 3-iodo-8-trifluoromethyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-b]pyridazine (example C.26 step 11) (229 mg, 0.5 mmol) and 5-ethynyl-pyridin-2-ylamine (example D.1) (101 mg, 0.85 mmol) according to general procedure II. Obtained as a bright orange solid (180 mg, 80%). MS (ISP) 448.2 [(M+H)+]; mp 267° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07446113B2
Source datasetuspto-grants-2008_11
ORD IDord-b1d3183e53714fc4998ed647f56a5514
Source noteuspto-grants-2008_11