Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1778733Generated: October 31, 2026

Ethylamine → 5-Bromo-2-ethyl-2,3-dihydro-1H-isoindol-1-one

https://huagongshe.com/reaction/1778733

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylamineHCID 6341—
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl 4-bromo-2-(bromomethyl)benzoateHCID 22031079—
SolventEthanolHCID 702—
SolventTetrahydrofuranHCID 8028—
Product5-Bromo-2-ethyl-2,3-dihydro-1H-isoindol-1-oneHCID 23158146—

Reaction Steps

A mixture of methyl 4-bromo-2-(bromomethyl)benzoate (0.5 g, 2 mmol) (AstaTech Cat. No. 27012), ethylamine in THF (1.0 mL, 2.0 M) (Aldrich Cat. No. 395072), and potassium carbonate (0.34 g, 2.4 mmol) in ethanol (5 mL) in a sealed vial was stirred at 40° C. overnight. The solid was filtered off. The filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column with ethyl acetate in hexanes (0-50%) to afford the desired product (0.28 g). LCMS (M+H)+=240.0/242.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09266892B2
Source datasetuspto-grants-2016_02
ORD IDord-ad41058dab7e4ff88dc5becbbce6f0dc
Source noteuspto-grants-2016_02