Process for Preparing Morphinan-6-One Products with Low Levels of Alpha, Beta-Unsaturated Ketone Compounds

摘要

The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of alpha,beta-unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound. (A)