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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2427652Generated: October 30, 2026

Ethylamine → HCID 57949760, compound

https://huagongshe.com/reaction/2427652

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylamineHCID 6341—
ReactantTetrahydrofuranHCID 8028—
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl 4-bromo-2-(bromomethyl)-6-chlorobenzoateHCID 59512234—
SolventTolueneHCID 1140—
SolventHexaneHCID 8058—
SolventEthyl AcetateHCID 8857—
ProductHCID 57949760HCID 5794976037%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 4-bromo-2-bromomethyl-6-chloro-benzoic acid methyl ester (0.684 g, 2.00 mmol), 2M THF solution of ethyl amine (1.3 mL, 2.6 mmol), and K2CO3 (0.552 g, 4.0 mmol) in toluene (5 mL) was heated with stirring at 100° C. for 2 h. Workup and silica gel column chromatography using 30% ethyl acetate in hexane afforded 5-bromo-7-chloro-2-ethyl-2,3-dihydro-isoindol-1-one (0.203 g, 37%). GC-MS: m/z 275 (M)+, 258 (M−27)+. 1H NMR (300 MHz, CDCl3): δ (ppm) 1.24 (t, 3H), 3.64 (q, 2H) 4.34 (s, 2H), 7.50 (s, 1H), 7.58 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07968570B2
Source datasetuspto-grants-2011_06
ORD IDord-0fb5d2df2f7449e2b4518d5990952cc7
Source noteuspto-grants-2011_06