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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1451649Generated: October 25, 2026

Toluene → 4-[2-(2,3-Dihydro-5,6-dimethoxy-1H-isoindol-2-yl)ethyl]benzenamine

https://huagongshe.com/reaction/1451649

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
ReactantSodium HydroxideHCID 14798—
Reactant2-(4-Aminophenyl)ethylamineHCID 72895—
Reactant1,2-Bis(chloromethyl)-4,5-dimethoxybenzeneHCID 10944400—
SolventWaterHCID 962—
Product4-[2-(2,3-Dihydro-5,6-dimethoxy-1H-isoindol-2-yl)ethyl]benzenamineHCID 19974556—

Reaction Steps

4,5-Bischloromethyl veratrol (2.35 g: S. H. Wood, M. A. Peny and C. C. Tung, J. A. C. S. (1950), 72, 2989-2991) was added at room temperature to a stirred suspension of 50% aqueous sodium hydroxide (5 ml), toluene (25 ml), 4-aminophenylethylamine (1.5 g) and Aliquat (0.2 g). The heterogeneous mixture was stirred at room temperature for 16 hours, poured in water and extracted with methylene chloride. The organic layer was dried and the solvent evaporated in vacuo. The residue was purified by column chromatography on silica gel eluting with methylene dichloride/methanol (95:5) to give the title compound as a solid (0.6 g), MP: 150°. NMR includes signals at d 2.7(4H,m,Ph--CH2 --CH2 --N); 4.6(2H,bs,NH2); 3.7(6H,s,2×OCH3); 3.8(4H,s,2×N--CH2Ph); 6.2-7.0(6H,m,aromatics).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05604237
Source datasetuspto-grants-1997_02
ORD IDord-bc39019733d845728ef69ee9952ea420
Source noteuspto-grants-1997_02