HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2387979Generated: October 31, 2026
Water → 8-cyano-3,4-dihydro-1H-1-benzazepine-2,5-dione
https://huagongshe.com/reaction/2387979
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | 8-iodo-2,3,4,5-tetrahydro-1H-1-benzazepine-2,5-dione | HCID 58476623 | — |
| Catalyst | Zinc cyanide (Zn(CN)2) | HCID 11186 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Product | 8-cyano-3,4-dihydro-1H-1-benzazepine-2,5-dione | HCID 67337595 | 70% |
Reaction Steps
To a solution of 8-iodo-3,4-dihydro-1H-1-benzazepine-2,5-dione (0.3 g, 1.0 mmol) in DMF (5 mL) was added Zn(CN)2 (0.12 g, 1.0 mmol) and Pd(PPh3)4 (116 mg, 0.1 mmol). The reaction mixture was allowed to stir at 80° C. for 3.5 h. After being allowed to cool to rt, EtOAc (20 mL) and H2O (20 mL) were added, the organic solution was separated, and the aqueous solution was extracted with EtOAc (2×50 mL). The organic solutions were combined, washed with H2O and brine, dried over MgSO4, filtered and concentrated. The residue was purified by column chromatography to provide 8-cyano-3,4-dihydro-1H-1-benzazepine-2,5-dione (140 mg, 70%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08268992B2 |
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| Source dataset | uspto-grants-2012_09 |
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| ORD ID | ord-fc65746df4be47dfbf505c9d7d78b6f0 |
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| Source note | uspto-grants-2012_09 |
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