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
Participants
| Role | Name | HCID | Charge |
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| Reactant | Water | HCID 962 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 4-Methyloxybenzyl chloride | HCID 69993 | — |
| Reactant | 7-Chloro-3-(2-chlorophenethyl)-3,4-dihydro-1H-benzo[e][1,4]diazepine-2,5-dione | HCID 67283115 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 7-Chloro-3-(2-chlorophenethyl)-1-(4-methoxybenzyl)-3,4-dihydro-1H-benzo[e][1,4]diazepine-2,5-dione | HCID 67282619 | 72.2% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08604023B2 |
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| Source dataset | uspto-grants-2013_12 |
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| ORD ID | ord-14171ce3c38b422597005ef3dfce3037 |
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| Source note | uspto-grants-2013_12 |
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