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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2409580Generated: November 1, 2026

Sodium Carbonate → HCID 66717262, compound

https://huagongshe.com/reaction/2409580

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 66717127HCID 66717127—
CatalystHCID 178418476HCID 178418476—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 66717262HCID 6671726220.2%

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of 5-Iodo-2-(3-methanesulfonyl-phenyl)-imidazo[2,1-b][1,3,4]thiadiazole (0.091 g, 0.225 mmol, 1 eq), and 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-3-trifluoromethyl-pyridin-2-ylamine (0.097 g, 0.337 mmol, 1.5 eq), PdCl2(PPh3)2 (32 mg, 0.045 mmol, 0.2 eq) and 2M Na2CO3 (1 mL) and dioxane (5 mL). The reaction mixture was heated at 110° C. for 24 h. The solvent was evaporated, the residue was redissolved in DCM/water (150 mL) and extacted with DCM (2×80 mL). The organic layer was dried (MgSO4), filtered and evaporated. The residue was triturated from MeOH and filtered off. The solid was purified by column chromatography (0-5% MeOH in DCM) to give the desired product (20 mg, 20%) as a yellow solid. HPLC-MS (5-100% B in 8 min at 0.8 mL): tR=5.25 min, [M+H]+ m/z 440.0; 1H NMR (300 MHz, DMSO) δ 8.90 (d, J=1.8 Hz, 1H), 8.44 (d, J=1.6 Hz, 1H), 8.37 (d, J=2.0 Hz, 1H), 8.33 (d, J=7.9 Hz, 1H), 8.19 (d, J=8.1 Hz, 1H), 7.92 (t, J=7.9 Hz, 1H), 7.84 (s, 1H), 6.74 (s, 2H), 3.32 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08815918B2
Source datasetuspto-grants-2014_08
ORD IDord-c6539889bfd842a69f37cc2b73ba7f9c
Source noteuspto-grants-2014_08