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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 77477Generated: October 27, 2026

Triethylamine → (E)-4-(2-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)vinyl)-N-(4-(trifluoromethyl)phenyl)-1,3,5-triazin-2-amine

https://huagongshe.com/reaction/77477

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantTri-o-tolylphosphineHCID 80271—
Reactant5-Iodo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazoleHCID 66793469—
ReactantN-(4-(trifluoromethyl)phenyl)-4-vinyl-1,3,5-triazin-2-amineHCID 86679766—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventAcetonitrileHCID 6342—
Product(E)-4-(2-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)vinyl)-N-(4-(trifluoromethyl)phenyl)-1,3,5-triazin-2-amineHCID 8667976756.4%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a stirred solution of 5-iodo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (0.05 g, 0.152 mmol) in ACN (5 mL) were added N-(4-(trifluoromethyl)phenyl)-4-vinyl-1,3,5-triazin-2-amine (0.041 g, 0.152 mmol), tri-o-tolylphosphine (0.019 g, 0.061 mmol) and triethylamine (0.064 mL, 0.457 mmol). Nitrogen was purged for 5 minutes. Tris(dibenzylideneacetone)dipalladium(0) (0.014 g, 0.015 mmol) was added and the reaction mixture was heated at 90° C. overnight. The reaction mixture was filtered through a pad of celite, washed with ethyl acetate, and the organic layer was concentrated. The crude product was purified by flash chromatography on silica gel using 25% ethyl acetate in hexane to give (E)-4-(2-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)vinyl)-N-(4-(trifluoromethyl)phenyl)-1,3,5-triazin-2-amine as a pale yellow solid (0.04 g, 42% yield). LCMS: R.T.=1.21 min; [M+H]+=467.33.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841301B2
Source datasetuspto-grants-2014_09
ORD IDord-547cb35abe2a4d62b3ab7f5657fc4139
Source noteuspto-grants-2014_09