Main > > Literature > Codeine. > Production. > DiHydroThebaine Derived Route > 7-Bromo DihydroCodeinone Di-Me > Ketal Prepn. > 7-Br-DihydroCodeinone Di-Me Ketal > DeHydroBromination By: > Reaction with NaOH in Solvent: > Di-Me SulphOxide Contg 5% Water > Result: Codeinone DiMethyl Ketal > Hydrolysis by 2N Sulfuric Acid > Result: Codeinone Sulphate. > Alkali Addition & > Sodium BoroHydride Reduction > Patent Assignee
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Scotland. M