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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 989528Generated: October 30, 2026

Ethanol → HCID 178478666, compound

https://huagongshe.com/reaction/989528

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantDiethyl EtherHCID 3283—
ReactantDichloromethaneHCID 6344—
ReactantHCID 178520208HCID 178520208—
CatalystPalladiumHCID 23938—
ProductHCID 178478666HCID 17847866693%

Reaction Conditions

Temperature60 °C

Reaction Steps

Ethanol (200 mL) was added to a mixture of 2-(4-nitroimidazolyl)-2-phenyl-1-pyrrolidinylethan-1-one (3) (0.752 g, 2.8 mm) and 10% Pd on carbon (75 mg) in a Bradley hydrogenation apparatus. The stirred reaction mixture was subjected to a 60 psi H2 atmosphere and warmed to 60° C. After 2 hours, the reaction mixture was cooled to room temperature and the catalyst was removed by filtration. Anhydrous HCl gas was added to the filtered solution until saturation. The volatiles were then removed under vacuum to give a light yellow foam. Diethyl ether and methylene chloride (25:1) were added to the foam and the resulting mixture was stirred overnight to achieve crystallization. The resulting slurry was filtered and the cake was washed with diethyl ether. The cake was dried under vacuum to give 0.659 g (93%) of a yellow solid. LGD 208.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06639076B1
Source datasetuspto-grants-2003_10
ORD IDord-6e0060a37aa64ef4ac350f6fe753b036
Source noteuspto-grants-2003_10