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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2102894Generated: October 30, 2026

3,3-Dimethyl-1-butyne → HCID 57804123, compound

https://huagongshe.com/reaction/2102894

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,3-Dimethyl-1-butyneHCID 13512—
Reactant2,6-Dichloronicotinic acidHCID 854047—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystDichlorobis(triphenylphosphine)palladiumHCID 6102075—
SolventTriethylamineHCID 8471—
ProductHCID 57804123HCID 578041235%

Reaction Steps

2,6-dichloropyridine-3-carboxylic acid (2.0 g, 10.42 mmol), 3,3-dimethylbut-1-yne (1.4 mL, 11.46 mmol), copper(I) iodide (0.198 g, 1.04 mmol) and bis(triphenylphosphine) palladium(II) chloride (1.46 g, 2.08 mmol) were stirred in 40 mL triethylamine at room temperature for 24 h. The solvent was removed in vacuo and the residue was purified by column chromatography using 10-50% MeOH/EtOAc to furnish 125 mg (5%) of the title compound as an orange solid. m/z=236 (M−1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07576099B2
Source datasetuspto-grants-2009_08
ORD IDord-90cb2c6084124db9a65d269121de69fe
Source noteuspto-grants-2009_08