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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 708329Generated: October 30, 2026

Triethylamine → HCID 86688172, compound

https://huagongshe.com/reaction/708329

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantTrimethylsilylacetyleneHCID 66111—
Reactant4-Bromo-3-methylpyridine--hydrogen chloride (1/1)HCID 18958774—
CatalystCopper iodideHCID 83717—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86688172HCID 8668817287%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of 4-bromo-3-methyl pyridine hydrochloride (5.0 g, 24.0 mmol) in THF (degassed, 80 mL) was added copper iodide (450 mg, 2.40 mmol) and triethylamine (20.0 mL, 143.9 mmol). After degassing for 15 min, palladium tetrakis triphenylphosphine (830 mg, 0.72 mmol) and trimethylsilylacetylene (6.10 mL, 43.16 mmol) were added. The mixture was heated at 50° C. for 16 h then cooled to rt and filtered. The crude residue was purified via silica gel chromatography (EtOAc-Hexanes, 10%) to afford the title compound (3.95 g, 87%) as clear but dark oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09174978B2
Source datasetuspto-grants-2015_11
ORD IDord-33071a8eadb744209d29f50913ff3a3b
Source noteuspto-grants-2015_11