VERFAHREN ZUR HERSTELLUNG VON MORPHINAN-6-ON-PRODUKTEN MIT GERINGEN KONZENTRATIONEN VON ALPHA-, BETA-UNGESÄTTIGTEN KETONVERBINDUNGEN

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.