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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2409589Generated: November 1, 2026

Sodium Carbonate → HCID 66716902, compound

https://huagongshe.com/reaction/2409589

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)pyridin-2-amineHCID 46864103—
ReactantHCID 66717031HCID 66717031—
CatalystHCID 178418476HCID 178418476—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 66716902HCID 667169024%

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of N-[3-(5-Iodo-imidazo[2,1-b][1,3,4]thiadiazol-2-yl)-phenyl]-acetamide (0.16 g, 0.416 mmol, 1 eq), 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-3-trifluoromethyl-pyridin-2-ylamine (0.12 g, 0.416 mmol, 1 eq), 2M aq Na2CO3 (0.9 mL) and PdCl2(PPh3)2 (60 mg, 0.083 mmol, 0.2 eq) in dioxane (5 mL) was heated at 110° C. for 90 min. The solvent was removed under reduced pressure and the residue was redissolved in DCM and washed with water. The organic layer was dried over Na2SO4, filtered and evaporated. The residue was purified by flash-chromatography (DCM: MeOH, 5 to 15%) and by HPLC to afford the desired product (7 mg, 4%). HPLC-MS (5-100% B in 8 min at 0.8 mL): tR=4.74 min, [M+H]+ m/z 419.1; 1H NMR (300 MHz, DMSO) δ 10.30 (s, 1H), 8.89 (s, 1H), 8.32 (m, 2H), 7.81 (m, 2H), 7.62 (d, J=7.8 Hz, 1H), 7.54 (t, J=7.9 Hz, 1H), 6.75 (s, 2H), 2.09 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08815918B2
Source datasetuspto-grants-2014_08
ORD IDord-5f6743b7abc44c46866b9e907edac91b
Source noteuspto-grants-2014_08