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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1597637Generated: October 30, 2026

Cesium carbonate → HCID 21699787, compound

https://huagongshe.com/reaction/1597637

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
ReactantEthyl 4-bromobutyrateHCID 76300—
ReactantHCID 178418642HCID 178418642—
SolventDimethylformamideHCID 6228—
ProductHCID 21699787HCID 21699787—

Reaction Steps

A mixture of 4-hydroxypyridine (10 g, 105 mmol), ethyl 4-bromobutyrate 12-1 (15.0 ml, 105 mmol) and Cs2CO3 (34.2 g, 105 mmol) in DMF (100 ml) was stirred at room temperature for 24 h. The reaction was filtered and the filtrate diluted with ethyl acetate (300 ml) and washed with water (4×100 ml) and brine (100 ml) then dried (Na2SO4), filtered, and evaporated. The resulting oil was purified by chromatography on silica gel (3% CH3OH/CH2Cl2) to give 12-2 as a colorless glass.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06294549B1
Source datasetuspto-grants-2001_09
ORD IDord-4f845649c2dc42399ba0d34477ded71a
Source noteuspto-grants-2001_09