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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2059847Generated: November 1, 2026

Tributyl(2-phenylethynyl)stannane → HCID 178517722, compound

https://huagongshe.com/reaction/2059847

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTributyl(2-phenylethynyl)stannaneHCID 630640—
Reactant2-Oxo-1-trityl-1,2-dihydropyrimidin-4-yl 2,4,6-triisopropylbenzenesulfonateHCID 58579886—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystHCID 178418397HCID 178418397—
SolventDimethylformamideHCID 6228—
ProductHCID 178517722HCID 178517722—

Reaction Conditions

Temperature55 °C

Reaction Steps

Tributyl(phenylethynyl)stannane (315 mg, 0.8 mmol) was added to a stirred solution of 2-oxo-1-trityl-1,2-dihydropyrimidin-4-yl 2,4,6-triisopropylbenzenesulfonate Part A (200 mg, 0.3 mmol), copper (I) iodide (18.4 mg, 0.1 mmol) and palladium tetrakis (55.8 mg, 0.05 mmol) in 5 mL DMF under nitrogen. The reaction mixture was heated at 55° C. for 16 h, concentrated and subjected to flash chromatography (silica gel/methylene chloride to 15% MeOH-methylene chloride gradient to afford 4-(phenylethynyl)pyrimidin-2(1H)-one 4B (66 mg) as a brownish solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08278316B2
Source datasetuspto-grants-2012_10
ORD IDord-029522b1c85d447bbff0fdaa0fb8b00e
Source noteuspto-grants-2012_10