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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2252277Generated: November 1, 2026

Codeine → Hydrocodone

https://huagongshe.com/reaction/2252277

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCodeineHCID 5284371—
SolventEthanolHCID 702—
ProductHydrocodoneHCID 528456970%

Reaction Conditions

Temperature0 °C

Reaction Steps

Codeine, 5.0 g, and 0.117 g catalyst, Ru(P(C6H5)3)3Cl2, were dissolved in 25 ml EtOH. The mixture was flushed with nitrogen for 5 minutes. After refluxing under nitrogen for 2 hours the reaction mixture was cooled down to 0° C. and filtered. The collected crystals were washed twice with 5 ml each MeOH and dried in air for 1 hour to yield white crystals, 70% yield hydrocodone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07321038B2
Source datasetuspto-grants-2008_01
ORD IDord-647c3cec3b01403da8ce4795ce314d18
Source noteuspto-grants-2008_01