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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2427534Generated: October 26, 2026

p-Xylyl bromide → 5-Methoxy-2-(4-methylbenzyl)-2,3-dihydroisoindol-1-one

https://huagongshe.com/reaction/2427534

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Xylyl bromideHCID 7721—
ReactantCesium carbonateHCID 10796—
Reactant5-methoxy-2,3-dihydro-1H-isoindol-1-oneHCID 22064719—
SolventAcetonitrileHCID 6342—
Product5-Methoxy-2-(4-methylbenzyl)-2,3-dihydroisoindol-1-oneHCID 5794971622.4%

Reaction Conditions

Temperature70 °C

Reaction Steps

5-Methoxy-2,3-dihydroisoindol-1-one (40 mg, 0.25 mmol), Cs2CO3 (239 mg, 0.74 mmol), 1-bromomethyl-4-methylbenzene (68 mg, 0.37 mmol) in acetonitrile (4 mL) was allowed to stir at room temperature for 18 hours and at 70° C. for 4 hours. The reaction was partitioned between ethyl acetate and water and the organic layer was washed with brine and dried over anhydrous Na2SO4. The solvent was removed under reduced pressure and the product was purified by column chromatography (30% EtOAc/Hexanes) to afford a white solid (15 mg). 1H NMR (300 MHz, CDCl3): δ 7.81 (d, 1H), 7.18 (q, 4H), 7.00 (dd, 1H), 6.87 (s, 1H), 4.75 (s, 2H), 4.21 (s, 2H), 3.87 (s, 3H), 2.34 (S, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07968570B2
Source datasetuspto-grants-2011_06
ORD IDord-ad2978ed7ada4b119a3dda1b86a02824
Source noteuspto-grants-2011_06