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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1098578Generated: November 3, 2026

Cesium carbonate → HCID 66728944, compound

https://huagongshe.com/reaction/1098578

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant3-Amino-5-bromopyridineHCID 817681—
Reactant4,4,5,5-Tetramethyl-2-(prop-1-en-2-yl)-1,3,2-dioxaborolaneHCID 10997426—
CatalystHCID 178418397HCID 178418397—
SolventN,N-Dimethylformamide--water (1/1)HCID 21962138—
ProductHCID 66728944HCID 66728944230.4%

Reaction Conditions

Temperature90 °C

Reaction Steps

5-Bromopyridin-3-amine (0.433 g, 2.5 mmol), 4,4,5,5-tetramethyl-2-(prop-1-en-2-yl)-1,3,2-dioxaborolane (0.630 g, 3.75 mmol), Cs2CO3 (3.10 g, 9.5 mmol) and Pd(PPh3)4 (0.289 g, 0.25 mmol) were suspended in DMF/H2O (3:1, 20 mL). The reaction mixture was degassed with N2 and heated at 90° C. for 16 h. Solvent was removed under reduced pressure. The residue was diluted with H2O (20 mL) and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine (20 mL), dried, concentrated in vacuo and purified by chromatography to afford 5-(prop-1-en-2-yl)pyridin-3-amine (0.773 g, 230%) as a dark yellow oil. MS (ESI) m/z: 135.0 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08143293B2
Source datasetuspto-grants-2012_03
ORD IDord-e2135403269942138b98950d528ebe2b
Source noteuspto-grants-2012_03