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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 449889Generated: October 29, 2026

Cesium carbonate → HCID 59618183, compound

https://huagongshe.com/reaction/449889

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant1-Methyl-3-aminopyrazoleHCID 137254—
Reactant1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
ReactantN-(2-Bromopyridin-4-yl)-2,6-dichlorobenzamideHCID 75464886—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 59618183HCID 5961818324%

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08486950B2
Source datasetuspto-grants-2013_07
ORD IDord-5595a9cc5f6545fbb3fc58af4c77c383
Source noteuspto-grants-2013_07