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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 445636Generated: October 31, 2026

Cesium carbonate → HCID 49758528, compound

https://huagongshe.com/reaction/445636

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant2-MethylimidazoleHCID 12749—
Reactant5-Bromo-2-chloropyridineHCID 2734414—
SolventDimethylacetamideHCID 31374—
ProductHCID 49758528HCID 49758528—

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 5-bromo-2-chloro-pyridine (Aldrich, Buchs, Switzerland, 392 mg, 2.04 mmol), 2-methyl-1H-imidazole (Aldrich, Buchs, Switzerland, 251 mg, 3.06 mmol) and cesium carbonate (1.33 g, 4.08 mmol) in DMA (10 ml) was heated by microwave irradiation for 20 min at 100° C. and 2.5 h at 150° C. The reaction mixture was quenched with diluted brine (200 ml) and cooled. The precipitate was filtered, washed with water and dried to give the title compound as off-white solid. (HPLC: tR 2.03 min (Method A); M+H=238, 240 MS-ES).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08476294B2
Source datasetuspto-grants-2013_07
ORD IDord-c0fbe965a5104fac996474fdedbe0194
Source noteuspto-grants-2013_07