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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 449925Generated: October 30, 2026

Cesium carbonate → HCID 59618475, compound

https://huagongshe.com/reaction/449925

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant4-AminopyrimidineHCID 68958—
Reactant1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
ReactantHCID 86648963HCID 86648963—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 59618475HCID 59618475296.7%

Reaction Steps

To a microwave tube was added N1-(2-bromopyridin-4-yl)-2,6-dichloro-N4,N4-dimethylterephthalamide (84 mg, 0.20 mmol), pyrimidin-4-amine (38 mg, 0.40 mmol), Pd2(dba)3 (18 mg, 0.020 mmol), Xantphos (23 mg, 0.040 mmol), Cs2CO3 (131 mg, 0.40 mmol) and dioxane (1.2 mL). The mixture was degassed with N2 for 5 min and then irradiated in a microwave reactor at 140° C. for 60 min. After cooling, the reaction was filtered through Celite and concentrated under reduced pressure. The residue was dissolved 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 afford the desired product (50 mg, 58% yield). 1H NMR (500 MHz, DMSO-d6): δ 8.30-8.22 (m, 2H), 7.60-7.56 (m, 3H), 3.10 (s, 3H), 3.00 (s, 3H), 1.86 (m, 1H), 0.99-0.88 (m, 4H). LCMS (ESI) m/z: 421.1 [M+H+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08486950B2
Source datasetuspto-grants-2013_07
ORD IDord-19fb71dd94a74ef994b0efa6f179b173
Source noteuspto-grants-2013_07