Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Diethyl Ether | HCID 3283 | — |
| Reactant | Dimethylformamide dimethyl acetal | HCID 78373 | — |
| Reactant | 8-Chloro-3,4-dihydro-7-iodo-1H-1-benzazepine-2,5-dione | HCID 58476599 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 58476643 | HCID 58476643 | 82% |
Reaction Steps
To a suspension of 8-chloro-7-iodo-3,4-dihydro-1H-1-benzazepine-2,5-dione (10.0 g, 29.8 mmol) in THF (44mL) was added DMF-DMA (21.1 mL, 149 mmol). The flask reaction mixture was allowed to stir 60° C. under an atmosphere of argon. A light orange solution containing a suspended solid resulted. After 17 h, the reaction mixture was allowed to cool to it. Ether (100 mL) was added and the solid was collected via suction filtration, washed with ether, and dried in a vacuum oven to yield (4Z)-8-chloro-4-[(dimethylamino)methylene]-7-iodo-3,4-dihydro-1H-1-benzazepine-2,5-dione (9.50g, 24.3 mmol, 82%) as a yellow solid. LCMS (FA): m/z=391 (M+H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07998952B2 |
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| Source dataset | uspto-grants-2011_08 |
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| ORD ID | ord-b112507897824255802a6fc4b522f889 |
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| Source note | uspto-grants-2011_08 |
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