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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1910682Generated: October 31, 2026

Water → 7-Chloro-3-(2-chlorophenethyl)-1-(4-methoxybenzyl)-3,4-dihydro-1H-benzo[e][1,4]diazepine-2,5-dione

https://huagongshe.com/reaction/1910682

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
Reactant4-Methyloxybenzyl chlorideHCID 69993—
Reactant7-Chloro-3-(2-chlorophenethyl)-3,4-dihydro-1H-benzo[e][1,4]diazepine-2,5-dioneHCID 67283115—
SolventDimethylformamideHCID 6228—
Product7-Chloro-3-(2-chlorophenethyl)-1-(4-methoxybenzyl)-3,4-dihydro-1H-benzo[e][1,4]diazepine-2,5-dioneHCID 6728261972.2%

Reaction Steps

7-Chloro-3-(2-chlorophenethyl)-3,4-dihydro-1H-benzo[e][1,4]diazepine-2,5-dione (1.0 g, 1 eq), 1-(chloromethyl)-4-methoxybenzene (448 mg, 1 eq), and potassium carbonate (1.19 g, 3 eq) were suspended in DMF (11.5 mL), and the mixture was stirred at room temperature overnight. Water was then added and the mixture was stirred for 30 minutes. The solid was collected by filtration, and the solid was returned to a flask and concentrated from toluene to remove water. The crude material was purified by chromatography (gradient: 9:1 hexanes:EtOAc to 1:1 hexanes:EtOAc) yielding a white solid (970 mg, 72% yield). 1H-NMR (300 MHz, DMSO-d6) δ 8.90 (d, 1H), 7.60-7.50 (m, 3H), 7.38-7.17 (m, 4H), 6.97 (d, 2H), 6.78 (d, 2H), 5.32 (d, 1H), 4.81 (d, 1H), 3.80 (m, 1H), 3.65 (s, 3H), 2.74 (t, 2H), 2.10 (m, 1H), 1.90 (m, 1H). MS (ES+) m/z 490.9 (M+Na).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08604023B2
Source datasetuspto-grants-2013_12
ORD IDord-14171ce3c38b422597005ef3dfce3037
Source noteuspto-grants-2013_12