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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 473517Generated: October 25, 2026

Triethylamine → 2-(5-(3-Bromophenyl)pent-4-ynyl)isoindoline-1,3-dione

https://huagongshe.com/reaction/473517

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant1-Bromo-3-fluorobenzeneHCID 14082—
ReactantN-(4-Pentynyl)phthalimideHCID 11769822—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystHCID 178418476HCID 178418476—
SolventDimethylformamideHCID 6228—
Product2-(5-(3-Bromophenyl)pent-4-ynyl)isoindoline-1,3-dioneHCID 67203127—

Reaction Steps

1-Bromo-3-fluoro-benzene (1.0 mL, 7.8 mmol), 2-pent-4-ynyl-isoindole-1,3-dione (1.8 g, 8.6 mmol), Pd(PPh3)2Cl2 (191 mg, 0.27 mmol), CuI (118 mg, 0.62 mmol), and triethylamine (4.4 mL, 31.3 mmol) were taken up into DMF (10 mL) and stirred at room temperature for four hours. The reaction was then quenched with saturated NaHCO3 and the resulting mixture extracted with EtOAc and washed with brine, then dried over sodium sulfate and the solvent removed in vacuo. The resulting residue was purified on normal phase chromatography (Heptane/EtOAc) to yield 2-(5-(3-bromophenyl)pent-4-ynyl)isoindoline-1,3-dione. MH+ 368, 370

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08633322B2
Source datasetuspto-grants-2014_01
ORD IDord-e7447d44287547cbbed70defc7eb2690
Source noteuspto-grants-2014_01