HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 449889Generated: October 29, 2026
Cesium carbonate → HCID 59618183, compound
https://huagongshe.com/reaction/449889
Participants
| Role | Name | HCID | Charge |
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| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | 1-Methyl-3-aminopyrazole | HCID 137254 | — |
| Reactant | 1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) | HCID 636044 | — |
| Reactant | N-(2-Bromopyridin-4-yl)-2,6-dichlorobenzamide | HCID 75464886 | — |
| Catalyst | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 59618183 | HCID 59618183 | 24% |
Reaction Steps
To a microwave tube were added N-(2-bromopyridin-4-yl)-2,6-dichlorobenzamide (0.12 g, 0.36 mmol), 1-methyl-1H-pyrazol-3-amine (0.045 g, 0.46 mmol), Pd2(dba)3 (0.031 g, 0.033 mmol), XantPhos (0.031 g, 0.052 mmol), Cs2CO3 (0.31 g, 0.94 mmol) and dioxane (3 mL). The mixture was degassed with N2 for 10 min. The resulting mixture was irradiated in a microwave reactor at 140° C. for 1 hour and then cooled to room temperature. The mixture was filtered through Celite and concentrated under reduced pressure. The residue was in DMF and purified by prep-HPLC (Gilson GX 281, Shim-pack PRC-ODS 250 mm×20 mm×2, gradient: CH3CN/10 mm/L NH4HCO3, 17 min) to give the desired product (30 mg, yield: 24%). 1H NMR (500 MHz, DMSO-d6): δ 10.92 (s, 1H). 9.16 (s, 1H), 8.01 (m, 1H), 7.60-7.50 (m, 5H), 7.04 (d, J=4.0 Hz, 1H), 6.27 (d, J=1.5 Hz, 1H), 3.72 (s, 3H). LCMS (ESI) m/z: 362.0 [M+H+].
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08486950B2 |
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| Source dataset | uspto-grants-2013_07 |
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| ORD ID | ord-5595a9cc5f6545fbb3fc58af4c77c383 |
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| Source note | uspto-grants-2013_07 |
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