HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 595642Generated: October 29, 2026
Water → 5-bromo-N-methyl-6-(N-methylmethylsulfonamido)-2-(6-(trifluoromethyl)pyridin-3-yl)benzofuran-3-carboxamide
https://huagongshe.com/reaction/595642
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | 2-(Trifluoromethyl)pyridine-5-boronic Acid | HCID 25134278 | — |
| Reactant | 5-bromo-2-iodo-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide | HCID 90332469 | — |
| Catalyst | Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+) | HCID 178418228 | — |
| Solvent | 1,4-Dioxane--water (1/1) | HCID 21886435 | — |
| Product | 5-bromo-N-methyl-6-(N-methylmethylsulfonamido)-2-(6-(trifluoromethyl)pyridin-3-yl)benzofuran-3-carboxamide | HCID 90332461 | 90% |
Reaction Steps
A mixture of 5-bromo-2-iodo-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide (1.5 g, 3.1 mmol), (6-(trifluoromethyl)pyridin-3-yl)boronic acid (705 mg, 3.7 mmol), Pd(dppf)Cl2 (245 mg, 0.3 mmol) and Na2CO3 (985 mg, 9.3 mmol) in dioxane/H2O (20 mL/4 mL) was stirred at 80° C. for 6 h. Water was added and the mixture was extracted with EtOAc. The organic phase was dried over Na2SO4 and concentrated in vacuum. The residue was purified by column chromatography (PE:EA=1:1) to give the product of 5-bromo-N-methyl-6-(N-methylmethylsulfonamido)-2-(6-(trifluoromethyl)pyridin-3-yl)benzofuran-3-carboxamide (1.4 g, yield: 90%). 1H-NMR (DMSO-d6, 400 MHz) δ 9.24 (s, 1H), 8.65 (d, J=4.4 Hz, 1H), 8.56 (d, J=8.0 Hz, 1H), 8.17 (s, 1H), 8.12 (d, J=8.0 Hz, 1H), 8.08 (s, 1H), 3.23 (s, 3H), 3.22 (s, 3H), 2.85 (d, J=4.4 Hz, 3H). MS (M+H)+: 506/508.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09243002B2 |
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| Source dataset | uspto-grants-2016_01 |
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| ORD ID | ord-84623478031c4bfb9f4f6bc255473170 |
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| Source note | uspto-grants-2016_01 |
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