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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1497666Generated: October 31, 2026

Dichloromethane → HCID 68285193, compound

https://huagongshe.com/reaction/1497666

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantCesium carbonateHCID 10796—
Reactant4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridineHCID 2734648—
ReactantHCID 68285300HCID 68285300—
CatalystBis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)HCID 178418228—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 68285193HCID 6828519370.4%

Reaction Steps

5-bromo-4-(3-nitrophenyl)-2-(tetrahydro-2H-pyran-4-yl)-1,3-thiazole (140 mg, 0.379 mmol) was dissolved into a mixture of degassed dioxane (8 mL) and water (1.6 mL). 2-(4-pyridyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (78 mg, 0.379 mmol, 1 eq.), cesium carbonate (370 mg, 1.137 mmol, 3 eq.) and PdCl2(dppf)2.CH2Cl2 (31 mg, 0.0379 mmol, 0.1 eq) were subsequently added to the solution. The mixture so obtained was stirred and heated to reflux under argon atmosphere for 5 h. After cooling, the suspension was filtered through a celite pad, and evaporated to dryness. The crude was re-dissolved in ethyl acetate and washed twice with brine. The organic layer was dried over sodium sulphate and evaporated to dryness. The solid material so obtained was then purified by silica gel column chromatography eluting with ethyl acetate/Hex (6/4) yielding the title compound (98 mg, 70%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09199979B2
Source datasetuspto-grants-2015_12
ORD IDord-1d07df3eb18d4c5f8261c6b24b648c3e
Source noteuspto-grants-2015_12