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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2409591Generated: October 30, 2026

Potassium Carbonate → HCID 66717247, compound

https://huagongshe.com/reaction/2409591

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)pyridin-2-amineHCID 46864103—
ReactantHCID 66717025HCID 66717025—
CatalystBis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)HCID 178418228—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductHCID 66717247HCID 6671724742%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 5-Iodo-2-(5-methoxy-pyridin-3-yl)-imidazo[2,1-b][1,3,4]thiadiazole (26 mg, 0.073 mmol, 1.0 eq), 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl) -3-trifluoromethyl-pyridin-2-ylamine (27 mg, 0.096 mmol, 1.3 eq), PdCl2(dppf) (12 mg, 0.015 mmol, 0.2 eq), sat. K2CO3 (0.5 mL) in DME (4 mL) was heated under microwave irradiation at 120° C. for 30 min. The solvent was removed and the residue was diluted with DCM and washed with H2O and brine. The organic layer was dried over Na2SO4, filtered and evaporated. The residue was purified by column chromatography (Isolute Si II; MeOH in DCM, 0 to 3%) to give the desired product (12 mg, 42%). HPLC-MS (5-100% B in 8 min at 0.8 mL): tR=4.76 min, [M+H]+ m/z 393.0; 1H NMR (300 MHz, DMSO) δ 8.87 (d, J=1.8 Hz, 1H), 8.75 (d, J=1.7 Hz, 1H), 8.53 (d, J=2.8 Hz, 1H), 8.38 (d, J=2.0 Hz, 1H), 7.85 (m, 2H), 6.76 (s, 2H), 3.96 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08815918B2
Source datasetuspto-grants-2014_08
ORD IDord-43565351b2004ddbadde5d7837d626ce
Source noteuspto-grants-2014_08