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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2387977Generated: October 31, 2026

8-vinyl-3,4-dihydro-1H-1-benzazepine-2,5-dione → 8-ethyl-3,4-dihydro-1H-1-benzazepine-2,5-dione

https://huagongshe.com/reaction/2387977

Reaction equation

Participants

RoleNameHCIDCharge
Reactant8-vinyl-3,4-dihydro-1H-1-benzazepine-2,5-dioneHCID 67336597—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product8-ethyl-3,4-dihydro-1H-1-benzazepine-2,5-dioneHCID 6733684191%

Reaction Conditions

Temperature70 °C

Reaction Steps

To a solution of 8-vinyl-3,4-dihydro-1H-1-benzazepine-2,5-dione (2.6 g, 13 mmol) in EtOH (160 mL) was added 10% (w/w) palladium on carbon (260 mg). The reaction mixture was allowed to stir under an atmosphere of H2 (5 bar) at 70° C. until reaction was complete. The reaction mixture was filtered over Celite® and the filtrate was concentrated to give 8-ethyl-3,4-dihydro-1H-1-benzazepine-2,5-dione (2.4 g, 91%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08268992B2
Source datasetuspto-grants-2012_09
ORD IDord-0036f7074bb841e9a8cbcf0911177783
Source noteuspto-grants-2012_09